1996 Chrysler Cirrus Lx, 2.5L V6, Automatic, 58K miles; OBD-I
I finally got time to trouble shoot this problem: stumbles and stalls after cold start; intermittently stalls when coming to a stop; rarely sets a code; a couple of times it set one or more of the following codes: 12, 13, 22, and 44
So far I tested for bad sensor ground by disconnecting the MAP connector and continuity testing pin 2 (BLK / LT BLU) and ground and wiggle test various parts of wiring harness: no effect. Ground seemed good.
I would like to try disconnecting the TTC solenoid, but can't locate it. Is there one in the "JA" body style?
Glen, maxpower: how should I precede from here?
TIA (and for helping me before). Bill
> >
> > 1995 Chrysler Cirrus Lx, 2.5L, Automatic
> >
> > The Haynes manual says it is ODBII. The diagnostic connector is definitely
> > OBDII type. But my scanner (Sony Clie with OBDII interface from Harrison > R&D
> > (Houston)) does not scan the PCM (works fine on ort her cars 1996 and up).
> Nor
> > does the Actron scanner at Autozone scan it.
> >
> > That's one issue.
> >
> > The main issue is that the car will unexpectedly chuggle and quit, usually
> when
> > pulling up to a stop. Then it starts right back up. This happened a couple
> of
> > times a day and never left a PCM code. Finally two days ago if set a code:
> >
> > 13 - MAP sensor voltage slow or no change from idle to run.
> >
> > Ha hah, I thought I had found the problem, but no.
> >
> > That code cleared on the next start up.
> >
> > Then last night another start (cold), chuggle, stall with codes: > >
> > 44 - battery temp sensor voltage, and
> > 22- engine coolant temp sensor voltage too low or high
> >
> > Is it plausible that there might be a wiring harness problem that > logically
> > ties all these things together? or is the PCM going bonkers?
> >
> > Any ideas?
> >
> > TIA
> > Bill
>
> The software wont work on that scan tool because OBD2 wasn't available until
> 1996. The coolant temp sensor and MAP sensor share the same 5 volt and
> ground circuit. Since the one fault code is voltage high I would start
> looking for a bad ground or a broken wire. do a wiggle test on the wire
> harness to see if you can make the engine stumble. Pay attention to the
> black/blue wires on the sensors, that is the ground circuit.
>
> Glenn Beasley
> Chrysler Tech
>
>