RX7 13B 4 UR AZZ

Ok where the pressure sensors vacuum source is supposed to go on the LIM (The Little Nipple) I have to have this open to atmosphere to keep the car running. If I plug it up with my finger the engine dies, I can raise the idle and plug it up but then the engine gets incredibly lumpy. I have been working on trouble shooting it using starting fluid and such but to no avail. I could really use help on this god knows ive asked this like a million times but nothing.

j200pruf

Where do you have the pressure sensor conencted right now? maybe you could move it back to the original spot and plug the nipple that the pressure sensor is on now?

RX7 13B 4 UR AZZ

The preassure sensor is not connected!

FCmaniac

I think that line is supposed to have an orifice in it.. if its the one going to the pressure sensor on the pass side strut tower from the lim.

madeinnuyawk

maybe the ps is bad and makes the engine stumble..try a different nipple tho

mazdaspeed7

Check your injectors. If theyre clogged, they wont give the right amount of fuel, hence the stalling when you stop the vacuum leak. When you disconnect the pressure sensor, the comp sees atmospheric pressure, even though the intake manifold is actually in vacuum, and injects more fuel.



Have you checked your codes yet?

GMON

So you need a vac leak to keep your engine running. Hows your BAC. If that is adjusted to let in too little air you would have the exact same symptoms. You could also get similar results if your tps was reading rich(read open throttle).



GregW

RX7 13B 4 UR AZZ

how di i check for codes

FCmaniac

take a look at your ecu

roadkill669

If my car was stock, I could help.



I dont have anything on my manifold any more.



Do you smell fuel in the engine bay? I still think it may be an injector issue.