Distributor Problem???
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Teching In
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Distributor Problem??? I have a 1995 trans am that is supercharged. After I changed the transmission, the car seemed to have a miss, but it didnt happen all the time. Now the car has slowed down 7 tenths at the race track and misses all the time. It starts missing at higher RPM's, like around 4200 and misses all through its shift at 6200. Is this a distributor problem?? Ive changed the coil and fuel pump. Thanks for your help!!!
Lindsey
Lindsey
HAHA they are a pain in the ***, but sounds like a good place to start. Many different veriables can cause the opti to fail. Condensation, corrosion, etc... Also you say it started to happen after install of the new trans? Auto or manual? I personally dont know of anything that could cause the car to act like this transmission wise but maybe someone else might chime if they had a similar problem.
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yeah its tuned fine im sure. lol id rather not practice things like that! I am going to try spark plug wires first and then im going to attempt to change the opti if that doesnt work. Its going to take forever and a half with that dang supercharger. And i have had the tranny checked over twice cause it started out just missing right before the shift. but now its gotten MUCH worse and as soon as you go full throttle it just misses uncontrolably. I slowed down almost a second at the race track lol
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Thread Starter
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It does it as soon as you go full throttle until you let off. It has the same 4L60E tranny in it but a higher stall converter. The computer has since been changed and the shift silenoid has already been replaced and changed nothing. A local guy did it for me. It wasnt cheap lol
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did you check to make sure your wires arent arcing? what about your coil arcing? I have this same problem with 14K on my OPTI and i just found out that my coil is arcing not off the wire but off the coil its self. check this first you dont want to throw more money into something that isnt broken
The reason I ask is because I know on the OBDI PCM's with a higher stall in a car, you can run into "stall wall" is the ODB-I computer's inability to accuratly calculate the difference in road speed and engine RPM given its basic parameters and then throws the car into limp mode until you shut it down.... ive never experienced it due to the fact my last car was OBDII so im not sure of all the symtoms. Im also probably over analyzing. 
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did you check to make sure your wires arent arcing? what about your coil arcing? I have this same problem with 14K on my OPTI and i just found out that my coil is arcing not off the wire but off the coil its self. check this first you dont want to throw more money into something that isnt broken
If its arcing, i would be able to see sparks in the dark right?? I checked that last night, and i didnt see anything. However, my question is if the car has to be missing for sparks to be noticeable? the car doesnt start missing until 4000RPM, and i cant necessarily get up that far sitting in my driveway.
And if this isnt what "arcing" is, my bad, im not exactly a pro when it comes to cars. I just race them.
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its a 1995, and its got a stall speed of 2500 RPM
Yeah the fuel pressure is great, I have a gauge inside the car.
Yeah the fuel pressure is great, I have a gauge inside the car.
i nhave a very similar problem with mine but i am closing my plug gap to see if it helps...possible spark blowout on mine...i will find out the outcome today after it dries up outside...best of luck on yours ...i have a 3400 stall but i dont think its stall wall on mine...but please explain exactly what happens when stall wall happens...i really dont know lol
Thread Starter
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Okay my bad i meant 3000. I do drive it around town every now and then when its actually running. Also i had the computer changed after i switched to 4:11 gears so all the computer spedometers and such should be correct....
You seriously might want to consider looking into the stall wall issue I stated before. Its just really weird that this "misfire" started to happen after the converter and trans install. And with the bigger stalled OBDI cars they will act funny. Keep us updated. 
i nhave a very similar problem with mine but i am closing my plug gap to see if it helps...possible spark blowout on mine...i will find out the outcome today after it dries up outside...best of luck on yours ...i have a 3400 stall but i dont think its stall wall on mine...but please explain exactly what happens when stall wall happens...i really dont know lol