sleeper
Former LOD President
My '93 is hesitating, almost as if it's out of gas, whenever I go WOT and let the revs get up there a bit. Sometimes it happens at low revs and low throttle openings too, but it's more consistent up top. The rest of the time it runs pretty well, except it occasionally stumbles right off idle too.
I changed the fuel pump recently, (car wouldn't start + no fuel pressure) and now it runs but does this. I checked fuel pressure while driving it and I lose a little bit of fuel pressure when this happens but not nearly enough for that to be the cause. I changed the fuel filter anyway and that didn't help. I need to hook the gauge back up and look a little more closely (hard to read the gauge in the dark) but it doesn't look like that's related to the problem. It loses power hard, as if the engine is about to die, and it would have to lose almost all fuel pressure to do that. The fluctuation I was seeing was maybe about 5 psi, something that could be affected by vacuum somehow. But the car doesn't appear to have any more vaccum leaks (I fixed all those when I bought it).
No codes KOEO or KOER. I have a pimpy snap-on scan tool on long-term loan from a friend, and it said nothing is wrong. But something ain't right. There was a stored code in there about a CID sensor, but when that failed on my '94 it did the stumble on tip-in when I first started it but it didn't give me any trouble after that. Now I have that problem plus the stumbling when I'm on it. And the code went away when I scanned it again.
Can LOD help me out?
I changed the fuel pump recently, (car wouldn't start + no fuel pressure) and now it runs but does this. I checked fuel pressure while driving it and I lose a little bit of fuel pressure when this happens but not nearly enough for that to be the cause. I changed the fuel filter anyway and that didn't help. I need to hook the gauge back up and look a little more closely (hard to read the gauge in the dark) but it doesn't look like that's related to the problem. It loses power hard, as if the engine is about to die, and it would have to lose almost all fuel pressure to do that. The fluctuation I was seeing was maybe about 5 psi, something that could be affected by vacuum somehow. But the car doesn't appear to have any more vaccum leaks (I fixed all those when I bought it).
No codes KOEO or KOER. I have a pimpy snap-on scan tool on long-term loan from a friend, and it said nothing is wrong. But something ain't right. There was a stored code in there about a CID sensor, but when that failed on my '94 it did the stumble on tip-in when I first started it but it didn't give me any trouble after that. Now I have that problem plus the stumbling when I'm on it. And the code went away when I scanned it again.
Can LOD help me out?