86 505 n9te high idle
From: august macbeth (august_macbeth@hotmail.com)
Date: Sat 23 Mar 2002 - 15:12:19 EST
some of you may remember me posting something a while back about a 86 turbo
car with the idle at 1800rpm. we really haven't done much with it because no
one has been driving the car lately etc etc, but smog is past due so
something has to happen soon. just so you guys have somewhat of an idea
what's up. there is definitely no vacuum leaks, we've spent quite a bit of
time with that in the past and found nothing. the accordion rubber tube
going from the afm to the turbo inlet is new, etc etc. i'm pretty sure it's
a component due to if it was a vacuum leak, idle would always be high, not
vary. if the car is idling, blimp the gas, the rpm will go up, then drop
down to 1000rpm for a second, then rise back up to 1800. tons of stuff has
been changed (AFM, throttle body (including TPS and microswitch), aux air
valve, ignition ECU, NTC sensor) but no change. also, timing is set to
factory spec.
for some reason, if the single black wire going to the o2 sensor (?signal?)
is disconnected, the idle drops down to where it should be. so if the o2
sensor is out of the picture, the car idles fine, (a new o2 sensor was
installed a couple of days ago).
the other thing is the overall running, there's a ton of missing and the
thing just flat out runs rough in the low rpm range (highway it's fine).
listening near the back of the car while it's running, there's a clear miss.
we put the car on the exhaust gas analyzer, at 1000rpm, the HC reading was
at like 1400, but everything else was ok. at 3000rpm the HC reading dropped
to a normal levels and still, all the other numbers were ok. i know that a
high HC reading indicates a misfire, so something with the ignition has to
be whacked.
i'll be getting new cap, rotor, plug wires from my local peugeot dealer on
monday along with new plugs.
if any of you have any suggestions, please let me know.
august
PS. Joe: will the WR5DS or W5DS plugs be ok in a stock N9TE? or would you
only recommend them after i get everything fixed, running at spec, and up
the boost and change injectors.
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