ignition/ poor running problems

[Brett Dikeman]

Paul Royal was having similar trouble with his 90q20v at the winter
driving school this weekend.

He accidentally tried to start it in gear, and from then on, it wouldn't start.

They cleaned the plugs(which were totally fouled) up with
alcohol+toothbrush, put them back in, it ran better for a minute or
two and then started backfiring etc again.

He'd had similar problems several years ago at the last WDS, and
simply turning the car off+back on fixed it.  The same happened
yesterday, and he drove the 30 min to Tim's school with no problems,
did a timed lap around the course, and shortly thereafter, it started
acting up again.  Backfiring, blowing black smoke...exhaust smelled
super rich.  Stopped it, started it up again, no rich running.  Odd.

I just forwarded him a copy of the below, but Javad, do you think
similar symptoms would occur on a 90q20v?


B

At 11:37 AM -0500 2/4/02, JShadzi at aol.com wrote:
>This sounds like a classic case of either an intermittent water temp
>sensor or water temp sensor connector.  Try pushing up on the
>connector when this happens, or inspect the connector, usually what
>happens is one of the pins falls back in the connector and makes a
>poor contact.
>
>HTH,
>Javad
>
>>  I have been troubleshooting an intermittent poor
>>  running condition where the engine suddenly looses
>>  power and runs as if the timing
>>  is off, sputtering and possibly backfiring through the
>>  intake ( a loud popping noise of the air flow sensor
>>  plate in the intake is heard
>>  when throttle is applied at time of poor running).
>>
>>  This condition happens spontaneously and vanishes
>>  within a few seconds only to return again a few
>>  minutes or hours later of driving
>>  when running at 3-4k operation revs.
>>  Engine is prone to this condition more so at idle.


--
----
"They that give up essential liberty to obtain temporary
safety deserve neither liberty nor safety." - Ben Franklin
http://www.users.cloud9.net/~brett/
http://www.users.cloud9.net/~brett/bdikeman.asc	(PGP Public Key)