boostedfe3

Jonno, My car feels like what your graph looks like. lol. I guess I need to look into a ecu. Could I just get a rb20 ecu and have it remapped?

ok will look into the afc. No I have not checked the fuel pressure yet, although that is next. I almost think that it is running way rich. when the car is warming up I get lots of brown smoke out the exhaust. And Im not getting any codes at all now and I have been driving it for a couple of days.

oh ok. I was under the impression that it would disable it, but I understand what you are saying also.

you guys think I should try and disable rich and retard and see what happens? and once again thanks for the responses. Also keep in mind I have that the car does this sitting still and free revving with part throttle.

Thanks guys for all the helpful replies. 45ult I will take a look at the splines on the camshaft and see if I can find any wear. After this I just dont know where to look. An engine coolant sensor couldnt cause this could it?

You still have the mines ecu. I have a manual transmission will this still work, and how much shipped to the U.S. at zip code 37663. Oh yeah I have a series II rb25.

I thought cam angle sensor also. I tried a different one that came off a buddies car and same thing. Stupid stock ecu. Since I have a series II and live in the states, can I just find a series I ecu and have it remapped. Really not looking to go to a standalone ecu at the moment.

Thanks for the replies. Boost is around 9.5 - 10 psi. I am using NGK BCPR7ES plugs that didnt change the problem so the plugs are a week old and are gapped at .8mm or .032. The thing is the car will do this with part throttle and sitting still. If I go full throttle sitting still you cant feel it, except for when you are driving. Last night it fouled my new NGK plugs out just by free revving it. Im stumped. Jonno that dyno looks like the way my car would feel. Its like trying to push the great wall of china out of my way and then it clears up and Im on the rev limiter before I can catch it.

Guys I have a Series II rb25det in a S14 240sx. I cannot get this thing to run correctly. Everything is completely stock except a front mount intercooler, 2.5inch downpipe and 3inch exhaust and a walbro 255hp fuel pump. After driving the only code I get is 21 ignition circuit. Feels like antilag. I have already tried a different afm and a different cas and no change whatsoever. Any help would be appreciated. I do know about the rich and retard and I have no knock sensor code. I have bought the resistors to bypass rich and retard but I have not tried it yet. Thanks in advance for any help.