Tried accelerating and engine died
Thread Starter
Cruising
Joined: Oct 2009
Posts: 14
Likes: 0
Tried accelerating and engine died
While driving home, normal conditions/clear, cool weather, engine running fine and fully warmed, I attempted to accelerate sharply to get around some slower traffic but as I pushed down on the gas quickly (probably 3/4 pedal) it was like I'd hit a kill switch. Suddenly I became the "slower traffic" ! Had to coast to the side. Motor would idle but would stutter when I tried accelerating. Getting back on the road it would run for a little while then it would act like a kill switch had been thrown. This went on for about four miles then it seemed to smooth out and started running like normal but I didn't attempt any sudden accelerations. Just wanted to get the rest of the way home under it's own power.
I have an '86 TPI w/ 4+3. Stock except for magnaflow exhaust and K&N air filter.
Any info as to what this might be will be greatly appreciated!
I have an '86 TPI w/ 4+3. Stock except for magnaflow exhaust and K&N air filter.
Any info as to what this might be will be greatly appreciated!
Pro
Joined: May 2006
Posts: 637
Likes: 0
Nope, you don´t have to.
Take a small paperclip and bend it into a U shape.
Under the steering wheel you have the socalled ALDL.
It´s a diagnostic terminal with two rows of six pins (connectors).
The upper two on the right are A and B, connect them with each other with the paperclip.
Now, turn on ignition but don´t start the engine.
The fan under the hood will start to blow, this is normal.
The SES light will start to flash codes now.
One flash, pause, two flashes, wich means code 12.
This one comes three times, after this you will get other codes, all wich will show three times, so you have the time to write them down.
It ends with code 12, again three times.
Try this one, http://www.corvettebuyers.com/c4vettes/codes.htm
Take a small paperclip and bend it into a U shape.
Under the steering wheel you have the socalled ALDL.
It´s a diagnostic terminal with two rows of six pins (connectors).
The upper two on the right are A and B, connect them with each other with the paperclip.
Now, turn on ignition but don´t start the engine.
The fan under the hood will start to blow, this is normal.
The SES light will start to flash codes now.
One flash, pause, two flashes, wich means code 12.
This one comes three times, after this you will get other codes, all wich will show three times, so you have the time to write them down.
It ends with code 12, again three times.
Try this one, http://www.corvettebuyers.com/c4vettes/codes.htm
Last edited by vette079; Oct 17, 2009 at 05:53 PM.
Thread Starter
Cruising
Joined: Oct 2009
Posts: 14
Likes: 0
Nope, you don´t have to.
Take a small paperclip and bend it into a U shape.
Under the steering wheel you have the socalled ALDL.
It´s a diagnostic terminal with two rows of six pins (connectors).
The upper two on the right are A and B, connect them with each other with the paperclip.
Now, turn on ignition but don´t start the engine.
The fan under the hood will start to blow, this is normal.
The SES light will start to flash codes now.
One flash, pause, two flashes, wich means code 12.
This one comes three times, after this you will get other codes, all wich will show three times, so you have the time to write them down.
It ends with code 12, again three times.
Try this one, http://www.corvettebuyers.com/c4vettes/codes.htm
Take a small paperclip and bend it into a U shape.
Under the steering wheel you have the socalled ALDL.
It´s a diagnostic terminal with two rows of six pins (connectors).
The upper two on the right are A and B, connect them with each other with the paperclip.
Now, turn on ignition but don´t start the engine.
The fan under the hood will start to blow, this is normal.
The SES light will start to flash codes now.
One flash, pause, two flashes, wich means code 12.
This one comes three times, after this you will get other codes, all wich will show three times, so you have the time to write them down.
It ends with code 12, again three times.
Try this one, http://www.corvettebuyers.com/c4vettes/codes.htm
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Safety Car
Joined: Jan 2008
Posts: 3,939
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From: Vero Beach Florida
Here is a list of your codes
1985-1991: ECM Codes
Code #12: Normal No Codes.
Code #13: Open Oxygen Sensor Circuit.
Code #14: Coolant Sensor Circuit Low.
Code #15: Coolant Sensor Circuit High.
Code #21: Throttle Position Sensor High.
Code #22: Throttle Position Sensor Low.
Code #23: Manifold Air Temperature Circuit High.
Code #24: Vehicle Speed Sensor.
Code #25: Manifold Air Temperature Circuit Low.
Code #32: EGR System Failure.
Code #33: Mass Air Flow Sensor High.
Code #34: Mass Air Flow Sensor Low.
Code #36: Mass Air Flow Sensor Burn-Off Function Fault.
Code #41: Cylinder Select Error.
Code #42: Electronic Spark Timing.
Code #43: Electronic Spark Control.
Code #44: Lean Exhaust indication.
Code #45: Rich Exhaust Indication.
Code #46: Vehicle Anti Theft Fault.
Code #51: Faulty Mem-Cal.
Code #52: Fuel Calpak Missing.
Code #52: (1990-91 Corvette Only): Engine Oil Temperature Sensor Low.
Code #53: System Over Voltage.
Code #54: Fuel Pump Circuit Low Voltage.
Code #55: Defective ECM.
Code #62: Engine Oil Temperature Sensor Circuit High.
1985-1991: ECM Codes
Code #12: Normal No Codes.
Code #13: Open Oxygen Sensor Circuit.
Code #14: Coolant Sensor Circuit Low.
Code #15: Coolant Sensor Circuit High.
Code #21: Throttle Position Sensor High.
Code #22: Throttle Position Sensor Low.
Code #23: Manifold Air Temperature Circuit High.
Code #24: Vehicle Speed Sensor.
Code #25: Manifold Air Temperature Circuit Low.
Code #32: EGR System Failure.
Code #33: Mass Air Flow Sensor High.
Code #34: Mass Air Flow Sensor Low.
Code #36: Mass Air Flow Sensor Burn-Off Function Fault.
Code #41: Cylinder Select Error.
Code #42: Electronic Spark Timing.
Code #43: Electronic Spark Control.
Code #44: Lean Exhaust indication.
Code #45: Rich Exhaust Indication.
Code #46: Vehicle Anti Theft Fault.
Code #51: Faulty Mem-Cal.
Code #52: Fuel Calpak Missing.
Code #52: (1990-91 Corvette Only): Engine Oil Temperature Sensor Low.
Code #53: System Over Voltage.
Code #54: Fuel Pump Circuit Low Voltage.
Code #55: Defective ECM.
Code #62: Engine Oil Temperature Sensor Circuit High.
Thread Starter
Cruising
Joined: Oct 2009
Posts: 14
Likes: 0
4K and 11 months on the filter and over 1/2 tank. Appreciate it! I've had some weird experiences with plugged filters in the past. You'd think the motor was getting ready to go...
Le Mans Master
Joined: Feb 1999
Posts: 6,470
Likes: 2
From: levittown pa. usa Even a bad day with my `Vette, is better than a good day at work
St. Jude Donor '10
While driving home, normal conditions/clear, cool weather, engine running fine and fully warmed, I attempted to accelerate sharply to get around some slower traffic but as I pushed down on the gas quickly (probably 3/4 pedal) it was like I'd hit a kill switch. Suddenly I became the "slower traffic" ! Had to coast to the side. Motor would idle but would stutter when I tried accelerating. Getting back on the road it would run for a little while then it would act like a kill switch had been thrown. This went on for about four miles then it seemed to smooth out and started running like normal but I didn't attempt any sudden accelerations. Just wanted to get the rest of the way home under it's own power.
I have an '86 TPI w/ 4+3. Stock except for magnaflow exhaust and K&N air filter.
Any info as to what this might be will be greatly appreciated!
I have an '86 TPI w/ 4+3. Stock except for magnaflow exhaust and K&N air filter.
Any info as to what this might be will be greatly appreciated!
Thread Starter
Cruising
Joined: Oct 2009
Posts: 14
Likes: 0
Thanks to all of you again!
Tim
Thread Starter
Cruising
Joined: Oct 2009
Posts: 14
Likes: 0
Team Owner
Joined: Jan 2003
Posts: 20,292
Likes: 239
From: Summerland B.C. Canada
Pro
Joined: May 2006
Posts: 637
Likes: 0
And if I have read correct on this forum, you should replace both relays at the same time, even if only one is broken.
Something about the new one burning through when the other old one craps out also.
It´s like replacing lightbulbs, replace one, might just as well rreplace the other one as well, since they both have run the same amount of miles/hours.
Something about the new one burning through when the other old one craps out also.
It´s like replacing lightbulbs, replace one, might just as well rreplace the other one as well, since they both have run the same amount of miles/hours.
Pro
Joined: May 2006
Posts: 637
Likes: 0