When driving at a constant speed it just kinda boggs down. My RPMs don't change, no CEL, can't figure it out. I've changed all sensors, distributor, intake, TB, head gasket, timing belt, injectors, resistor box, fuel filter, fuel pump, the engine harness, and added MSD.


Modified by 91gsrcivic at 4:30 PM 9/11/2008

 

this to happens to me when in low rpms usually when taking off in first.
dont know how to fixthis though

 

check your tps. if you have a bad contact on the potentiometer it will make the car stumble. also check timing too

 

I have this exact same problem and its driving me crazy. sometimes when i go over a bump it bogs down or jerk like its about to cut off

 

Already did that even replaced the throttle body. Had a shop here look at it and paid them for three hours of diagnostic time and they couldn't even tell me anything.

 

in some situations if the charcoal canister is removed, it can develop that kind of problem. is your charcoal canister intact?

 

Yes it is.

 

not a guarantee but it might fix your problem if you put it back on

 

I meant yes it is on my car

 

I was told its your low speed fuel cut. My car does this as well. I hear its something that really never stops you just get used to it

 

Yeah, I don't know bout all that. Cause mine doesn't just do it at low speeds, sometimes it'll do it when I take off, sometimes driving 35-40 around town, or 60-80 down the hwy, hell it even does it every now and then at idle.

 

check all vac lines for cracks also check all fuel lines under the car for wet spots

 

If you have your 2 O2 sensors wired backwards it wont throw a code and will have pretty similar symptoms to what you describe. This is probably the number one problem in first gen B16 swaps because the SI harness plugs into the WRONG O2 sensor.

 

Hows that its a 1 wire o2 sensor?