Author Topic: engine will turn over but not start (Read 9836 times)

B318M42W · « **Reply #30 on:** September 03, 2009, 04:37:01 PM »

check your plug wire order... disconnect neg. battery cable overnight (clears the DME)
might sound like you have toooooo much fuel? not burning it all and then burns in the exhaust.

AcSchnitzer318is · « **Reply #31 on:** September 04, 2009, 12:09:08 AM »

Have you pulled the plugs to see if you have fouled them? If it was running rich for an extended period of time, that is a definitely possibility.

If you have not replaced all the vacuum lines, intake mani gasket, and cleaned the ICV. Do that next.

brianw84 · « **Reply #32 on:** September 09, 2009, 06:16:44 PM »

The problem is now partially fixed. I cleaned up the mess of hoses (that contained many leaks) and simplified them, cleaned my injectors, cleaned everything, replaced the gaskets and put in new plugs. the idle is now fine, and throttle response is much better, but a few times the engine wouldnt do what the pedal was doin and would slow down and sputter, then suddenly speed ahead. anymore ideas?

B318M42W · « **Reply #33 on:** September 10, 2009, 08:15:09 AM »

maf, tps, ecu

brianw84 · « **Reply #34 on:** September 11, 2009, 02:41:48 PM »

im getting code 1216 - Designates error with potentiometer in Throttle Position sensor. Some later model cars have potentiometer, as opposed to switch (TPS) found on majority of e30 s. This code will be active if inappropriate sensor values are read by control unit, and although presence of this fault code may indicate bad potentiometer, wire harness connection at the sensor is common issue (corroded, loose connection, or broken).

I replaced the tps last week...any more ideas? how would i know if thats the problem or if it might be the maf or ecu?

brianw84 · « **Reply #35 on:** September 14, 2009, 07:04:23 PM »

I fixed it! It turned out that the hose goin from the icv was collapsing once it warmed up. i replaced it with a much thicker one and its running perfectly now!

She loved E · « **Reply #36 on:** September 18, 2009, 06:32:10 PM »

I have the same problem you had. I ordered all the "mess under intake" parts today; I'm also going to check the hose to the ICV to see if its collapsing. Wish me luck!

brianw84 · « **Reply #37 on:** September 21, 2009, 03:38:24 PM »

Yes cleaning up the mess of hoses does wonders for idling, ive noticed throttle response is better too. I used AC hose to replace the collapsing hose, probably overkill, but its what i had. just remember to clean EVERYTHING while your in there. Esp the ICV.