Dustin Yenny
Registered User
I've had nothing but driveability problems with the 93 since I bought it. I mean, I love the car....just not the way it runs most of the time. I could not stand it and quit driving the car within a month of purchasing it.
To begin with the car had the wrong size injectors in it when I bought it. The PO thought they were 42# and could barely get the car to run as he had the MAFs calibrated for that size. I went back to stock injectors and MAF.
Now to the problem. Since I changed those items out, the car ran a little better. For instance, I took the car out tonight for the 1st time since October. I take off normally 5-8psi boost and the car runs fine. 30 seconds later I will try the same thing and it wil miss and buck absolutely terribly. If you felt it....I swear you would think the engine was gonna fall out onto the ground. No matter what, if I always take off slow and keep it under 5psi it will almost never miss or buck. Now lets say we are going down the road. I speed up and the boost passes 5psi. It does the same thing (one time it may miss and buck terribly, 30 seconds later when I try it again.....its fine).
I've cleaned the MAF, the plugs are Autolite Double Platinums, Magnecore wires, mostly every sensor on the engine is new including the cam sensor. I replaced both 02s due to a CE light. I've resealed the intercooler tubes numerous times. I was told the fuel filter was replaced.
I just find it hard to believe that its a fuel issue (like dirty injectors or a filter) as I would think it would be constant not very random. Fuel pump is a new Walbro 255lph. I've checked the pressure while driving the car and there is no problem there.
My thinking is its electrical like a bad DIS or coil pack. All I know is that if I could get it running like it should....I would keep it in a heartbeat. Actually, I guess I have no choice because I've been trying to cut my losses and sell it for a while and well its still here.
To begin with the car had the wrong size injectors in it when I bought it. The PO thought they were 42# and could barely get the car to run as he had the MAFs calibrated for that size. I went back to stock injectors and MAF.
Now to the problem. Since I changed those items out, the car ran a little better. For instance, I took the car out tonight for the 1st time since October. I take off normally 5-8psi boost and the car runs fine. 30 seconds later I will try the same thing and it wil miss and buck absolutely terribly. If you felt it....I swear you would think the engine was gonna fall out onto the ground. No matter what, if I always take off slow and keep it under 5psi it will almost never miss or buck. Now lets say we are going down the road. I speed up and the boost passes 5psi. It does the same thing (one time it may miss and buck terribly, 30 seconds later when I try it again.....its fine).
I've cleaned the MAF, the plugs are Autolite Double Platinums, Magnecore wires, mostly every sensor on the engine is new including the cam sensor. I replaced both 02s due to a CE light. I've resealed the intercooler tubes numerous times. I was told the fuel filter was replaced.
I just find it hard to believe that its a fuel issue (like dirty injectors or a filter) as I would think it would be constant not very random. Fuel pump is a new Walbro 255lph. I've checked the pressure while driving the car and there is no problem there.
My thinking is its electrical like a bad DIS or coil pack. All I know is that if I could get it running like it should....I would keep it in a heartbeat. Actually, I guess I have no choice because I've been trying to cut my losses and sell it for a while and well its still here.