IllustrationECU IS DEFECTIVE DUE TO THE TYPE OF ADHESIVE USED INSIDE THE COMPONENT. THIS FAILURE IS CAUSING THE VEHICLE TO IDLE ROUGH/HIGH/AND SLOW. COULD BE DANGEROUS IF CONDITION PERSISTS. WOULD LIKE MANUFACTURER TO ISSUE A RECALL ON ALL AC DELCO ECU'S EMPLOYED IN 1991 ISUZU AND GEO CARS.
1991 Isuzu Stylus
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Stylus years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 1 of 21 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 7 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Vehicle Speed Control. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
3 crash reports0 fire reports0 injury reports
What owners actually said
21 reportsERRATIC IDLE SPEED, REVVING AND DROPPING, SPORADIC DYING OF THE ENGINE, HOVERING IDLE SPEED AOURN 2,000 - 3,000 RPM WHICH MAY OR MAY NOT RETURN TO NORMAL, UNCONTROLLABLE ACCELERATION UNDER LOAD ON MANUAL TRANS. DUE TO UNCONTROLLABLE ENGINE SPEED. *AK
THE CONCERN WE ALL HAVE IS WITH THE UNPREDICTABLE ERRATIC IDLE. WHILE SITTING AT A STOP, THE RPMS WILL JUMP FROM A STEADY 900 TO BETWEEN 2000-3000 UNEXPECTEDLY. THERE IS NO WARNING. I HAVE HAD TWO 90+ ISUZU CARS AND BOTH HAVE HAD THE SAME SYMPTOMS. AS THEY WERE BOTH MANUAL TRANSMISSIONS, I WAS NOT AS CONCERNED WITH THE POSSIBLE…
Read full complaint
THE CONCERN WE ALL HAVE IS WITH THE UNPREDICTABLE ERRATIC IDLE. WHILE SITTING AT A STOP, THE RPMS WILL JUMP FROM A STEADY 900 TO BETWEEN 2000-3000 UNEXPECTEDLY. THERE IS NO WARNING. I HAVE HAD TWO 90+ ISUZU CARS AND BOTH HAVE HAD THE SAME SYMPTOMS. AS THEY WERE BOTH MANUAL TRANSMISSIONS, I WAS NOT AS CONCERNED WITH THE POSSIBLE SIDE EFFECTS OF THIS SINCE WHEN IT WOULD OCCUR I WOULD EITHER HAVE THE PARKING BRAKE ON AND BE IN NEUTRAL, OR THE CLUTCH WOULD BE ENGAGED. OUR MAJOR CONCERN IS WITH HOW THIS AFFECTS THE AUTOMATIC TRANSMISSION VEHICLES. THE VERY POPULAR GEO STORM IS INCLUED IN THIS GROUP OF CARS, SINCE IT SHARES THE ENGINE AND ELECTRICAL SYSTEM OF THE ISUZUS IN QUESTION. THERE HAVE BEEN CONCERNED NOTES FROM OWNERS OF THESE CARS WITH THE AUTO TRANSMISSIONS WHO HAVE BEEN SITTING AT A LIGHT WHEN THIS WOULD OCCUR AND SUDDENLY THEIR CARS WOULD LUNGE FORWARD. LUCKILY, THESE DRIVERS HAVE BEEN ABLE TO CORRECT THE ACTIONS OF THEIR CARS BEFORE THERE WAS ANY SERIOUS DAMAGE. WE HAVE FOUND SHORT TERM SOLUTIONS TO THIS PROBLEM, BUT THE REAL CULPRIT IS THE COMPUTER, AND AT $600+ EACH TO REPLACE, MOST OWNERS PASS. HOPEFULLY YOU WILL NOTE OUR CONCERNS, AND INVESTIGATE THIS PROPERLY. PLEASE FEEL FREE TO CONTACT ME IF YOU NEED MORE INFORMATION OR FURTHER EXPLANATION. THANK YOU FOR YOUR TIME, AND CONCERN. HOPEFULLY WE CAN RECTIFY THIS PROBLEM BEFORE ANYONE GETS INJURED. *AK
I EXPERIENCE UNCONTROLLABLE ENGINE IDLE SPEED WHICH CAUSES DIFFICULTY IN MODULATING ACCELERATION WHEN LEAVING A STOP. THIS HAS THE POTENTIAL FO CAUSING UNAVOIDABLE COLLISIONS WITH OTHER VEHICLES OR PEDESTRIANS.*AK
ISUZU REFUSES TO FIX PROBLEM. NO SAFETY DEFECT LISTED. *AK
DEFECTIVE SEAT BELT BUCKLES PRIOR TO RECALL.
DRIVER SIDE AIR BAG DID NOT DEPLOY UPON A HEAD- ON COLLISION. *AK
WHILE GOING 55 MPH THE TIE ROD SLEEVE BROKE AND CAUSED THE VEHICLE TO HAVE NO STEERING. PLEASE DESCRIBE. *AK
WHILE DRIVING, AT APPROX. 50MPH, WET PAVEMENT, VEHICLE STARTED PULLING TO RIGHT, THEN SUDDENLY FRONT AXLE BROKE, WENT DOWN AN EMBANKMENT. *AK
ENGINE COVER GASKETS RUPTURED, CAUSING OIL PUMP TO FAILED, VEHICLE SEIZED WITHOUT ANY WARNIN. *AKG
Official recalls
192V091000 · Air Bags
Jul 6, 1992
THE STEERING WHEEL CENTER HUB CAN FRACTURE DURING CERTAIN FRONTAL AND NEAR FRONTAL VEHICLE COLLISIONS.
Consequence & remedy
Consequence: FRACTURING OF THE STEERING WHEEL HUB CAN DECREASE THEDRIVER'S CONTROL OF THE VEHICLE AND COULD REDUCE THE CRASH PROTECTION OF THESTEERING SYSTEM AND THE DRIVER'S SIDE AIR BAG.
Remedy: A STEERING WHEEL REINFORCEMENT PLATE AND NUT WILL BE ADDED TO THE STEERING WHEEL HUB.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
1EA95009 · Takata Seat Belt Buckle Failure
Opened Mar 10, 1995 · Closed Aug 2, 1995
Status: closed (inferred from source dates) · Seat Belts:front:buckle Assembly
There is no summary currently available