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markgp4 · Posted: Mon May 08, 2006 12:13 pm Post subject: Need help, engine hunting.

HELP...
I have a 16v motor which will not rev up properly unless the throttle position connection is removed. without it engine runs fine but idles rough and too fast, as soon as i re-connect it it revs up and dies down, up and dies down, but nothing more...
It is not the sensor or the afm as i have changed these for known items.
Any ideas what may be causing this?

Thanks in advance,
Mark
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make it go faster Smile

bobbber · Posted: Mon May 08, 2006 12:17 pm Post subject:

Air leak downstream from the AFM?

Then....

Dirty switch contacts?

Bob
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Fiat Bravo 165 Sport

stedee73 · Guest

it could be the lambda sensor,they cause all types of problems, i had that type of problem on one of my 33s in the past i disconnected the lambda(you have to cut the wires - just make sure you leave enough wire to join it back up with some connectors or solder it)and it worked fine, i had already changed all the sensors ie throttle sensor, airflow sensor, temp sensor. good luck finding the problem
steve

Guest · Posted: Mon May 08, 2006 10:00 pm Post subject:

thanks chaps.
will try those things at weekend.