HELP m30 running and idling issues

[LowR3V'in]

Take a look on the cap and make sure a wire isn't in the wrong place.

[vic_325]

my plugs are good, coil is good. distributor and rotor were used but looked pretty good when installed

[vic_325]

yes lol

[LowR3V'in]

does it sound like a subaru?

[vic_325]

have been driving it for a while now. it had a faulty throttle position switch ( thats why it idled high) now it idles at 600 or 700 after adjusting the new tps but it idles really lumpy as if it had a cam. But its just the stock cam. (i am using a 72c thermostat, would that affect idle?)

also feel vibrations when its reving in neutral at a stop light or at any rolling speed. a mechanic told me it feels like it has solid mounts. its on DIY mounts with e24 green motor bushings.

[vic_325]

alright, i found the vacuum leak. it was the bolt that holds a sensor and the triangular bracket under the intake manifold. it runs smooth now at about 900rpm, but still after driving it stays around 1500-2000 and SLOWLY comes back down. once i get a decent exhaust with a place for the o2 it should be fine. ill clean the icv too.

[vic_325]

it tried two icv's, it in the right way or else it would hit the hood. all vacuum lines are good i had to replace the one for the fpr. i do kind of hear a hissing tho,

[RickSloan]

sounds like your icv is bad or needs to be cleaned. Do you have the icv in the right direction?

[yert315]

sounds like a vacuum leak. Check all vacuum hoses (there aren't a lot). you're icv may be bad as well. If you have access to another one, try it out.

[vic_325]

i found that i had the icv and the tps plugs backwards so i switched them around and it helped out abit.. it doesnt stall and it runs a little smoother, but now it stays reved up at 2500-3000 when its supposed to be idling. if i pull out the icv and plug the vacum with my thumb , it idles under 1000

[chadthestampede]

changed the coolant sensors, coil, plug wires and adjusted the tps, still idles above 1000 when it does idle its kinda lumpy, and wont idle after i rev it or after any quick change in throttle. still same old thing

You're using an e30 temp sensor to the gauge and a b35 sensor to the ecu right?

The tps is a manual tps, right? Just taking shots in the dark here. Did you have to rewire anything?

Oh, wait a minute. Make sure your main and fuel pump relays are good. I had a bad one that caused similar issues.

You're not that far from me, I wish I had a passport so I could come up and help you.

[vic_325]

changed the coolant sensors, coil, plug wires and adjusted the tps, still idles above 1000 when it does idle its kinda lumpy, and wont idle after i rev it or after any quick change in throttle. still same old thing

[vic_325]

thanks for that link! i can see why it got red hot now. it could be any one of those because
-its only running with the acc fan
-exhaust does leak
-o2 not reading exhaust
-tps (im not sure how to adjust it)
-m20 harness could have a problem somewhere

today, im going to change both coolant sensors, the coil and plug wires, and do something about the o2 sensor

[drift]

Looks like this ? : http://www.car-sound.com/04basics/04convBasics.asp

[vic_325]

no its my daily lol it has good gas in it... the engine on the other hand. its been sitting over a year but i just did the head new seals and gaskets, reseated teh valves.