I cant rev pass 3500rpm.. Help
 

I cant rev pass 3500rpm. no matter how hard of soft i press the gas.

I got just done changing my rear diff and engine oil. As i start to
drive my car just bogged. I pop the hood and check to see what
wrong, there was nothing seems to be out of place. I start to drive
again and the samething happen. It feels like im not getting fuel. I
check my wideband, and it read out 25:1 af ratio everytime it bog. I
check the injector cyl. it would go up to 14% and then drop down to
0% everytime it bog. i think that the read why it bog.
I check the fuel pressure and I was getting 38 psi @ idle.

When i turn off the car, then start it up again it rev up all the way
for a few sec. and then it would start to bog again. I didn't touch
anything else during the oil change. Please i need help!!!

My mods are. Power fc, 1300cc sec, hks twin power, fmic, non-seq,
profec b, mp,dp, cb, fuel pump,


andrew

When you changed your oil, did you also change the oil filter? If so, see if you knocked a spark plug wire lose or if you knocked the map sensor off...

check the TPS sensor... pull it off and push it back in...

check the TPS sensor... pull it off and push it back in...

I had something similar happen to me, it was the boost sensor. I would take off fine and then as the turbo would kick in, it just cut-out. Still driveable but no turbo at all. Sometimes the old rubber lines break or just come off.

Thanks guys it was the tps, So oil must of drip on it or something.
thanks again
andrew

that's strange when i left my tps off my rpms would just float between shifts. I was able to boost and all.

I was also thinking you knocked a plug wire loose.

:D