No power towards uptop

[driftingminor913]

I have a CEL, when accelerating I have some power/torque but when I get past 5 it's just a flat climb and that's with the pedal floored. And if I beat the crap out of it (floored everywhere I go) the CEL will disappear then the car will start to pull normal instead of sluggish.

94 M50b25TU in a e30. My guess is maybe a bad IAVC, which I could just remove

[shiboujin]

caaaan you get the code? It's probably pinging.

[driftingminor913]

What's pinging?(knocking?) And another note is that when I hook it up to the scanner I always get knock sensor circuit 1&2 and vehicle speed sensor.

But when I do the stomp test I get code 1221 which is a massive vaccum leak correct?

[shiboujin]

pinging is knocking yes. May want to get new knock sensors. I forget what speed sensor means... wiring isn't right or something.

1221 basically means the car is running like ass. Not necessarily vacuum leak. But that's a good place to start.

[driftingminor913]

Ok took the intake off and one of my knock sensors was basically falling apart so I replaced it and put everything together and it ran a little better but still a little sluggish up top. Then the CEL came back on. Waited till I got home and did a stomp test and got 1222?

[shiboujin]

THAT is usually a vacuum leak.

[drez14]

Check your fuel supply too. That happened to me and i found out my fuel filter was clogged.

[328ijunkie]

knock sensors + VSS = no top end.

[driftingminor913]

My fuel filter is new. And with the vaccum leak would a hissing booster cause a massive leak? And the VSS, I wired it to my c101 from the e36's X20 the blk/wht to the blk/wht

[e30rapidic]

a hissing booster IS a massive leak.....

[driftingminor913]

Okay well removing that vacuum line from the engine and just running manual brakes for awhile will remove the leak from the motor correct?

[328ijunkie]

Youve found your problem. And yes but good luck with no power assist, esp if youre running an oversize master cyl. Start getting your legs roided up lol

[driftingminor913]

Lol I'm pumping the steroids as we speak! Lol

[Roysneon]

Yeah running a stock system with no vacuum assist is a bad bad idea and I really hope you're not doing that on the street with other drivers around.

That being said, as per the VSS issue, my car didn't run right at all until I fixed the speed sensor up. Did your speedo work before the swap?

[driftingminor913]

Yes my speedo worked before and I have a early model (1990) and its only temporily till I fix my current booster