Auto Recall Watch
U.S. public vehicle records

Isuzu I MARK problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

15 owner complaints analyzed

4 distinct recall campaigns

Not available median reported failure mileage

Scope: 1983 to 1989 model years. Data updated: . 0 complaints include usable failure mileage. View data status.

This selection has limited data. It remains available for lookup but is excluded from search indexing.

Owner-reported patterns

Most common problems

Electrical System:Ignition:Module is the most frequently named component, appearing in 4 of 15 complaints (26.7%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Engine operation533.3%
Braking behavior16.7%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Electrical System:Ignition:Module
4
Engine And Engine Cooling:Engine:Gasoline
3
Power Train:Driveline:Driveshaft
2
Unknown Or Other
2
Electrical System:Ignition
1
Power Train:Manual Transmission
1
Seat Belts
1
Seat Belts:Front:Buckle Assembly
1
Component breakdown data
CategoryCount
Electrical System:Ignition:Module4
Engine And Engine Cooling:Engine:Gasoline3
Power Train:Driveline:Driveshaft2
Unknown Or Other2
Electrical System:Ignition1
Power Train:Manual Transmission1
Seat Belts1
Seat Belts:Front:Buckle Assembly1

Electrical System:Ignition:Module: 4; Engine And Engine Cooling:Engine:Gasoline: 3; Power Train:Driveline:Driveshaft: 2; Unknown Or Other: 2; Electrical System:Ignition: 1; Power Train:Manual Transmission: 1; Seat Belts: 1; Seat Belts:Front:Buckle Assembly: 1

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
0
25,000 to 49,999
0
50,000 to 74,999
0
75,000 to 99,999
0
100,000 to 149,999
0
150,000 and above
0
Reported problems by failure mileage data
CategoryCount
Under 25,0000
25,000 to 49,9990
50,000 to 74,9990
75,000 to 99,9990
100,000 to 149,9990
150,000 and above0

Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0

No usable failure mileage is recorded. 15 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

1995
5
1999
4
2000
2
2001
2
2002
2
Complaints over time data
CategoryCount
19955
19994
20002
20012
20022

1995: 5; 1999: 4; 2000: 2; 2001: 2; 2002: 2

Pattern summary

Electrical System:Ignition:Module leads the component reports. Engine operation appears in 5 complaint narratives. Braking behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 721203 · 2000-04-09 (April 9, 2000)

THE FIRST ECU FAILURE OCCURRED UNDER WARRANTY AND CAUSED THE CAR TO BARELY RUN. IT WAS REPLACED BY JOHN KRAFT CHEVROLET (THEY NO LONGER SELL ISUZU'S). DURING THE PAST 3 YRS/30000 MI I HAVE EXPERIENCED ALL OF THE FOLLOWING: ERRATIC IDLE, IDLE REVVING AND DROPPING (MOST COMMON), IDLE HANGING HIGH ABOVE 2000 RPM, AND LAST BUT CERTAINLY NOT LEAST, IDLE DROPPING WITH CAR OFTEN STALLING. THIS HAPPENS WHEN THE CLUTCH IS DEPRESSED FOR A STOP. THE CAR SEEMS TO PICK BUSY INTERSECTIONS TO STALL. THERE IS A PROBLEM WITH THE AC DELCO ECU USED IN THIS CAR…

Owner-reported narrative. Look up ODI 721203 at NHTSA ↗

Owner report 741920 · 2001-03-05 (March 5, 2001)

THE COMPUTER IN THIS CAR CAUSES FOR AN EXTREMELY ERRATIC IDLE. WHEN THE VEHICLE IS FIRST TURNED ON, THE IDLE SPEED IS NORMAL AND STEADY FOR ABOUT 5 TO 10 SECONDS, AND THEN ALL BETS ARE OFF. SOMETIMES IT GOES UP, SOMETIMES IT GOES DOWN, RANGING ANYWHERE FROM NEAR-STALL TO 3000 RPM. IT DOES THIS EVERY TIME THE CAR IS TURNED ON WHEN COLD, ONLY OCCASIONALLY AFTER IT IS WARMED UP. I WOULD TRY REPAIRING IT, BUT I HAVE A GREAT DEAL OF EXPERIENCE WITH THIS ENGINE/ECU COMBINATION, AND ALMOST ALL OF THEM (INCLUDING DEALER-SUPPLIED REPLACEMENT ECUS, WHICH…

Owner-reported narrative. Look up ODI 741920 at NHTSA ↗

Owner report 971993 · 1995-09-13 (September 13, 1995)

THE FRONT BRAKE PADS WHEN CHANGED LATER THEY COME OFF IN A YEAR DIFFERENT . TT

Owner-reported narrative. Look up ODI 971993 at NHTSA ↗

Compare model years

Recalls by model year

All campaigns in the snapshot affecting each model year, including recalls announced years later.

Recall campaigns

Shared campaigns appear once in each affected model year.

1983
1
1985
1
1986
1
1987
2
1988
2
1989
0
Recall campaigns data
CategoryCount
19831
19851
19861
19872
19882
19890

1983: 1; 1985: 1; 1986: 1; 1987: 2; 1988: 2; 1989: 0

Year-by-year records

Isuzu I MARK model-year comparison
Model yearComplaintsRecallsChange in recalls
198311Not available
198511Not available
1986110
198722+1
1988020
1989100-2
Explore the data

Vehicle analysis explorer

Inspect model-year patterns, reported mileage, monthly activity and the evidence behind each signal.

Data completeness

15 unique complaints in this selection. Analysis snapshot: 2026-10-01.

0.0%Usable mileage0 / 15 records
60.0%Valid incident date9 / 15 records
100.0%Valid filing date15 / 15 records
60.0%Ordered incident and filing dates9 / 15 records

Missing, zero and invalid mileage is excluded. Dates after the snapshot are excluded. Examples are limited selections, not a representative sample.

Problems by model year

Model-wide comparison of the eight most reported components across the model. Cells show counts and shares within each model year. Open a cell for source examples.

Component complaint heatmap
Component198319851986198719881989
Electrical System:Ignition:Module
00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

150.0%
ODI 715733

THIS IS THE SECOND ECU TO GO BAD. CAUSES ENGINE TO REV, DIE, SPUTTER,ETC. MAKES DRIVING VERY DIFFICULT AND DANGEROUS WHEN HAPPENS!

Look up ODI 715733 at NHTSA ↗

0Unavailable

No examples available for this selection.

330.0%
ODI 741920

THE COMPUTER IN THIS CAR CAUSES FOR AN EXTREMELY ERRATIC IDLE. WHEN THE VEHICLE IS FIRST TURNED ON, THE IDLE SPEED IS NORMAL AND STEADY FOR ABOUT 5 TO 10 SECONDS, AND THEN ALL BETS ARE OFF. SOMETIMES IT GOES UP, SOMETIMES IT GOES DOWN, RANGING ANYWHERE FROM NEAR-STALL TO 3000 RPM. IT DOES THIS EVERY TIME THE CAR IS TURNED ON WHEN COLD, ONLY OCCASIONALLY AFTER IT IS WARMED UP. I WOULD TRY REPAIRING IT, BUT I HAVE A GREAT DEAL OF EXPERIENCE WITH THIS ENGINE/ECU COMBINATION, AND ALMOST ALL OF THEM (INCLUDING DEALER-SUPPLIED REPLACEMENT ECUS, WHICH…

Look up ODI 741920 at NHTSA ↗

Engine And Engine Cooling:Engine:Gasoline
00.0%

No examples available for this selection.

1100.0%
ODI 721086

I HAVE HAD NUMEROUS PROBLEMS WITH THE CAR SINCE I BOUGHT IT. THE DEALER THAT I BOUGHT THE CAR FROM SAID HE HAD FIXED THE PROBLEMS, BUT HADN'T. I ASKED FOR MY MONEY BACK BECAUSE I HAVEN'T HAD THE CAR FOR 20 DAYS YET, AND HE REFUSED. THE CAR HAS BEEN BROKEN DOWN EVER SINCE I BOUGHT THE CAR. THE DEALER WILL NOT DO ANYMORE FOR ME. HE DID NOT TELL ME THERE WAS ANYTHING WRONG WITH THE CAR WHEN I BOUGHT IT. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK

Look up ODI 721086 at NHTSA ↗

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

0Unavailable

No examples available for this selection.

220.0%
ODI 758960

ERRATIC IDLE, IDLE REVVING AND DROPPING, IDLE DIPPING OFTEN WITH ENGINE DYING, IDLE HANGING HIGH ABOVE 2,000 RPM, AND ENGINE DYING OR STALLING FOR NO REASON WITH NO TROUBLE CODES

Look up ODI 758960 at NHTSA ↗

Power Train:Driveline:Driveshaft
00.0%

No examples available for this selection.

1100.0%
ODI 721086

I HAVE HAD NUMEROUS PROBLEMS WITH THE CAR SINCE I BOUGHT IT. THE DEALER THAT I BOUGHT THE CAR FROM SAID HE HAD FIXED THE PROBLEMS, BUT HADN'T. I ASKED FOR MY MONEY BACK BECAUSE I HAVEN'T HAD THE CAR FOR 20 DAYS YET, AND HE REFUSED. THE CAR HAS BEEN BROKEN DOWN EVER SINCE I BOUGHT THE CAR. THE DEALER WILL NOT DO ANYMORE FOR ME. HE DID NOT TELL ME THERE WAS ANYTHING WRONG WITH THE CAR WHEN I BOUGHT IT. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK

Look up ODI 721086 at NHTSA ↗

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

0Unavailable

No examples available for this selection.

110.0%
ODI 708590

NO SUMMARY LISTED FOR ABOVE VEHICLE. *AK

Look up ODI 708590 at NHTSA ↗

Unknown Or Other
00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

0Unavailable

No examples available for this selection.

220.0%
ODI 713761

NO SUMMARY LISTE DFOR ABOVE VEHICLE. *AK

Look up ODI 713761 at NHTSA ↗

Electrical System:Ignition
00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

0Unavailable

No examples available for this selection.

110.0%
ODI 769977

THE ECU HAS CAUSED ERRATIC ENGINE BEHAVIOUR AND COMPLETE ENGINE FAILURE LEAVING US STRANDED ON NUMEROUS OCCASIONS. MECHANICS HAVE BEEN UNABLE TO RESOLVE THE ISSUE AND THE VEHICLE HAS BEEN UNTRUSTWORTHY OVER IT'S ENTIRE LIFE. MANY TIMES THE IGNITION SYSTEM HAS FAILED IN TRAFFIC WITH OUR BABIES IN THE CAR LEAVING US STRANDED IN THE HEAT. THIS UNIT SHOULD BE RECALLED. IT WOULD BE NICE TO HAVE SOME OF THE HUNDREDS SPENT ON MIS-DIAGNOSIS, MOTEL BILL'S AND TOWING SERVICE, ETC. REIMBURSED BY GM/DELCO -ISUZU. PLEASE CONTACT ME IF NECESSARY. DT

Look up ODI 769977 at NHTSA ↗

Power Train:Manual Transmission
00.0%

No examples available for this selection.

1100.0%
ODI 721086

I HAVE HAD NUMEROUS PROBLEMS WITH THE CAR SINCE I BOUGHT IT. THE DEALER THAT I BOUGHT THE CAR FROM SAID HE HAD FIXED THE PROBLEMS, BUT HADN'T. I ASKED FOR MY MONEY BACK BECAUSE I HAVEN'T HAD THE CAR FOR 20 DAYS YET, AND HE REFUSED. THE CAR HAS BEEN BROKEN DOWN EVER SINCE I BOUGHT THE CAR. THE DEALER WILL NOT DO ANYMORE FOR ME. HE DID NOT TELL ME THERE WAS ANYTHING WRONG WITH THE CAR WHEN I BOUGHT IT. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK

Look up ODI 721086 at NHTSA ↗

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

0Unavailable

No examples available for this selection.

00.0%

No examples available for this selection.

Seat Belts
00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

0Unavailable

No examples available for this selection.

110.0%
ODI 973022

REAR SEAT BELTS HAVE FAILED, SEAT BELTS WILL NOT RETRACT FROM ITS POSITION, BOTH SEAT BELT NEEDS REPLACEMENT. TT

Look up ODI 973022 at NHTSA ↗

Seat Belts:Front:Buckle Assembly
00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

00.0%

No examples available for this selection.

150.0%
ODI 976994

ALL THE SEAT BELTS IN THE CAR FAILED TO LATCH. THE OWNER HAS WRITTEN A LETTER TO CONGRESSMAN ALSO SPOKE TO DEALER NOTHING HAPPENED. TT

Look up ODI 976994 at NHTSA ↗

0Unavailable

No examples available for this selection.

00.0%

No examples available for this selection.

Darker cells indicate a larger share of submitted complaints. Components overlap. This measures complaint composition, not failure probability.

Failure mileage by component

Median and middle 50% of usable owner-reported mileages. Ranges require at least five records.

Component failure mileage distribution
ComponentMileage range (25th–75th percentile)MedianUsable recordsExamples
No usable records for this analysis.

Complaint and recall timeline

Explore monthly filing activity alongside recall announcements. Up to ten years of monthly history is available.

1 reports2024-112026-10

Solid line: filed complaints. Dashed amber lines: recall announcement dates for this vehicle selection; markers include all recall components. The latest month is partial. Temporal proximity does not establish causation.

Monthly counts, recall campaigns and complaint examples
Monthly complaint and recall timeline
MonthComplaintsCampaigns announcedExamples
2024-110None

No examples available for this selection.

2024-120None

No examples available for this selection.

2025-010None

No examples available for this selection.

2025-020None

No examples available for this selection.

2025-030None

No examples available for this selection.

2025-040None

No examples available for this selection.

2025-050None

No examples available for this selection.

2025-060None

No examples available for this selection.

2025-070None

No examples available for this selection.

2025-080None

No examples available for this selection.

2025-090None

No examples available for this selection.

2025-100None

No examples available for this selection.

2025-110None

No examples available for this selection.

2025-120None

No examples available for this selection.

2026-010None

No examples available for this selection.

2026-020None

No examples available for this selection.

2026-030None

No examples available for this selection.

2026-040None

No examples available for this selection.

2026-050None

No examples available for this selection.

2026-060None

No examples available for this selection.

2026-070None

No examples available for this selection.

2026-080None

No examples available for this selection.

2026-090None

No examples available for this selection.

2026-10 (partial)0None

No examples available for this selection.

Emerging complaint spikes

Complete months in the latest six months with at least 10 complaints, at least twice the preceding 12-month average, and at least three square-root deviations above that average.

This is a descriptive screening rule, not a statistical defect finding. Publicity and reporting changes can increase submissions.

No complete months meet the spike thresholds for this selection.

Equal-age model-year comparison

Model-wide cumulative reports during the first three or five calendar years, starting with the model year (age 0). Only fully elapsed windows are compared.

Age 0Age 1Age 21 reports

1988: 0 complaints · 1989: 1 complaints

Equal observation windows
Model yearThrough age 0Through age 1Through age 2
1988000
1989001
Date coverage across each selected cohort
Date basis for all complaints in selected model years
YearIncident dates usedFiling date fallbacksExcluded dates
1988000
1989550

Incident date is preferred when valid and no later than filing; otherwise filing date is used. Model year approximates age. Equal observation time does not adjust for sales, distance driven or reporting delays. One complaint linked to multiple model years can appear in each cohort.

Components reported together

Each cell counts unique complaints naming both components. Open a nonzero cell for examples.

Component co-occurrence matrix
ComponentElectrical System:Ignition:ModuleEngine And Engine Cooling:Engine:GasolinePower Train:Driveline:DriveshaftUnknown Or OtherElectrical System:IgnitionPower Train:Manual TransmissionSeat BeltsSeat Belts:Front:Buckle Assembly
Electrical System:Ignition:Module—
1
ODI 881392

ECU HAS FAILED, CAUSING ERRACTIC IDLE/ VEHICLES STALLING. PLEASE PROVIDE FURTHER INFORMATION. *AK

Look up ODI 881392 at NHTSA ↗

000000
Engine And Engine Cooling:Engine:Gasoline
1
ODI 881392

ECU HAS FAILED, CAUSING ERRACTIC IDLE/ VEHICLES STALLING. PLEASE PROVIDE FURTHER INFORMATION. *AK

Look up ODI 881392 at NHTSA ↗

—
1
ODI 721086

I HAVE HAD NUMEROUS PROBLEMS WITH THE CAR SINCE I BOUGHT IT. THE DEALER THAT I BOUGHT THE CAR FROM SAID HE HAD FIXED THE PROBLEMS, BUT HADN'T. I ASKED FOR MY MONEY BACK BECAUSE I HAVEN'T HAD THE CAR FOR 20 DAYS YET, AND HE REFUSED. THE CAR HAS BEEN BROKEN DOWN EVER SINCE I BOUGHT THE CAR. THE DEALER WILL NOT DO ANYMORE FOR ME. HE DID NOT TELL ME THERE WAS ANYTHING WRONG WITH THE CAR WHEN I BOUGHT IT. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK

Look up ODI 721086 at NHTSA ↗

00
1
ODI 721086

I HAVE HAD NUMEROUS PROBLEMS WITH THE CAR SINCE I BOUGHT IT. THE DEALER THAT I BOUGHT THE CAR FROM SAID HE HAD FIXED THE PROBLEMS, BUT HADN'T. I ASKED FOR MY MONEY BACK BECAUSE I HAVEN'T HAD THE CAR FOR 20 DAYS YET, AND HE REFUSED. THE CAR HAS BEEN BROKEN DOWN EVER SINCE I BOUGHT THE CAR. THE DEALER WILL NOT DO ANYMORE FOR ME. HE DID NOT TELL ME THERE WAS ANYTHING WRONG WITH THE CAR WHEN I BOUGHT IT. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK

Look up ODI 721086 at NHTSA ↗

00
Power Train:Driveline:Driveshaft0
1
ODI 721086

I HAVE HAD NUMEROUS PROBLEMS WITH THE CAR SINCE I BOUGHT IT. THE DEALER THAT I BOUGHT THE CAR FROM SAID HE HAD FIXED THE PROBLEMS, BUT HADN'T. I ASKED FOR MY MONEY BACK BECAUSE I HAVEN'T HAD THE CAR FOR 20 DAYS YET, AND HE REFUSED. THE CAR HAS BEEN BROKEN DOWN EVER SINCE I BOUGHT THE CAR. THE DEALER WILL NOT DO ANYMORE FOR ME. HE DID NOT TELL ME THERE WAS ANYTHING WRONG WITH THE CAR WHEN I BOUGHT IT. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK

Look up ODI 721086 at NHTSA ↗

—00
1
ODI 721086

I HAVE HAD NUMEROUS PROBLEMS WITH THE CAR SINCE I BOUGHT IT. THE DEALER THAT I BOUGHT THE CAR FROM SAID HE HAD FIXED THE PROBLEMS, BUT HADN'T. I ASKED FOR MY MONEY BACK BECAUSE I HAVEN'T HAD THE CAR FOR 20 DAYS YET, AND HE REFUSED. THE CAR HAS BEEN BROKEN DOWN EVER SINCE I BOUGHT THE CAR. THE DEALER WILL NOT DO ANYMORE FOR ME. HE DID NOT TELL ME THERE WAS ANYTHING WRONG WITH THE CAR WHEN I BOUGHT IT. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK

Look up ODI 721086 at NHTSA ↗

00
Unknown Or Other000—0000
Electrical System:Ignition0000—000
Power Train:Manual Transmission0
1
ODI 721086

I HAVE HAD NUMEROUS PROBLEMS WITH THE CAR SINCE I BOUGHT IT. THE DEALER THAT I BOUGHT THE CAR FROM SAID HE HAD FIXED THE PROBLEMS, BUT HADN'T. I ASKED FOR MY MONEY BACK BECAUSE I HAVEN'T HAD THE CAR FOR 20 DAYS YET, AND HE REFUSED. THE CAR HAS BEEN BROKEN DOWN EVER SINCE I BOUGHT THE CAR. THE DEALER WILL NOT DO ANYMORE FOR ME. HE DID NOT TELL ME THERE WAS ANYTHING WRONG WITH THE CAR WHEN I BOUGHT IT. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK

Look up ODI 721086 at NHTSA ↗

1
ODI 721086

I HAVE HAD NUMEROUS PROBLEMS WITH THE CAR SINCE I BOUGHT IT. THE DEALER THAT I BOUGHT THE CAR FROM SAID HE HAD FIXED THE PROBLEMS, BUT HADN'T. I ASKED FOR MY MONEY BACK BECAUSE I HAVEN'T HAD THE CAR FOR 20 DAYS YET, AND HE REFUSED. THE CAR HAS BEEN BROKEN DOWN EVER SINCE I BOUGHT THE CAR. THE DEALER WILL NOT DO ANYMORE FOR ME. HE DID NOT TELL ME THERE WAS ANYTHING WRONG WITH THE CAR WHEN I BOUGHT IT. NO SAFETY DEFECT LISTED IN THE SUMMARY. *AK

Look up ODI 721086 at NHTSA ↗

00—00
Seat Belts000000—0
Seat Belts:Front:Buckle Assembly0000000—

Co-reporting does not establish that one component caused another concern.

Recurring narrative patterns

Specific keyword mentions beyond broad component labels. Matching includes negations and comparisons and does not confirm a diagnosis.

1 patterns with matching reports.

Stalling or loss of power

5 mentions · 33.3% of complaints

Median mileage: Unavailable (0 usable records).

ODI 721203

THE FIRST ECU FAILURE OCCURRED UNDER WARRANTY AND CAUSED THE CAR TO BARELY RUN. IT WAS REPLACED BY JOHN KRAFT CHEVROLET (THEY NO LONGER SELL ISUZU'S). DURING THE PAST 3 YRS/30000 MI I HAVE EXPERIENCED ALL OF THE FOLLOWING: ERRATIC IDLE, IDLE REVVING AND DROPPING (MOST COMMON), IDLE HANGING HIGH ABOVE 2000 RPM, AND LAST BUT CERTAINLY NOT LEAST, IDLE DROPPING WITH CAR OFTEN STALLING. THIS HAPPENS WHEN THE CLUTCH IS DEPRESSED FOR A STOP. THE CAR SEEMS TO PICK BUSY INTERSECTIONS TO STALL. THERE IS A PROBLEM WITH THE AC DELCO ECU USED IN THIS CAR…

Look up ODI 721203 at NHTSA ↗

ODI 741920

THE COMPUTER IN THIS CAR CAUSES FOR AN EXTREMELY ERRATIC IDLE. WHEN THE VEHICLE IS FIRST TURNED ON, THE IDLE SPEED IS NORMAL AND STEADY FOR ABOUT 5 TO 10 SECONDS, AND THEN ALL BETS ARE OFF. SOMETIMES IT GOES UP, SOMETIMES IT GOES DOWN, RANGING ANYWHERE FROM NEAR-STALL TO 3000 RPM. IT DOES THIS EVERY TIME THE CAR IS TURNED ON WHEN COLD, ONLY OCCASIONALLY AFTER IT IS WARMED UP. I WOULD TRY REPAIRING IT, BUT I HAVE A GREAT DEAL OF EXPERIENCE WITH THIS ENGINE/ECU COMBINATION, AND ALMOST ALL OF THEM (INCLUDING DEALER-SUPPLIED REPLACEMENT ECUS, WHICH…

Look up ODI 741920 at NHTSA ↗

ODI 758960

ERRATIC IDLE, IDLE REVVING AND DROPPING, IDLE DIPPING OFTEN WITH ENGINE DYING, IDLE HANGING HIGH ABOVE 2,000 RPM, AND ENGINE DYING OR STALLING FOR NO REASON WITH NO TROUBLE CODES

Look up ODI 758960 at NHTSA ↗

Matching rule\b(stall\w*|loss of power|lost power|engine shut\w* off)\b