lsawicki
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- Jun 3, 2007
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I was wondering if ya'll would like to help me diagnose a problem my 93 RRC LWB is having:
1) I cleaned out the air filter, MAF, and throttle body a few days before this started happening
2) Very randomly, my engine will start to go off of the wall in the low RPM range (bounces up and down below 1,500) then starts to sink...lower...and lower...and then she finally dies after trying to sputter back into the 500 RPM range.
3). When I am parked or have the foot on the brake and rev the engine to about 3,000 to 4,000 RPM's I see black smoke coming out of the exhaust in the side mirror.
4). The EFI light has not been tripped, but am getting code 23 (low fuel pressure)
5) Stepper motor was replaced 20k miles ago, and I cleaned it about 8k miles ago.
6). Fuel filter was changed at about that time
7) I regularly give the engine a cleaning with seafoam through the intake (about half to three quarters of the bottle, and put the rest in the gas tank)
8). When I open the gas cap to fill her up when the reserve light comes on, air rushes into the tank as if it was holding a vacuum
9). The engine will work normally until it gets hot.
10). I replaced the O2 sensors about 8k miles ago.
So these are the symptoms that I could think of that might relate to the problem. Has anyone else ever had this experience? I would really appreciate any input at all, this is getting frustrating/embarrassing at stop lights
1) I cleaned out the air filter, MAF, and throttle body a few days before this started happening
2) Very randomly, my engine will start to go off of the wall in the low RPM range (bounces up and down below 1,500) then starts to sink...lower...and lower...and then she finally dies after trying to sputter back into the 500 RPM range.
3). When I am parked or have the foot on the brake and rev the engine to about 3,000 to 4,000 RPM's I see black smoke coming out of the exhaust in the side mirror.
4). The EFI light has not been tripped, but am getting code 23 (low fuel pressure)
5) Stepper motor was replaced 20k miles ago, and I cleaned it about 8k miles ago.
6). Fuel filter was changed at about that time
7) I regularly give the engine a cleaning with seafoam through the intake (about half to three quarters of the bottle, and put the rest in the gas tank)
8). When I open the gas cap to fill her up when the reserve light comes on, air rushes into the tank as if it was holding a vacuum
9). The engine will work normally until it gets hot.
10). I replaced the O2 sensors about 8k miles ago.
So these are the symptoms that I could think of that might relate to the problem. Has anyone else ever had this experience? I would really appreciate any input at all, this is getting frustrating/embarrassing at stop lights
