1987 Plymouth Reliant 2.5L won't start (early model)

Viper2 · 2005-04-06T19:52:28+00:00

I'm reaching out to those Chrysler/Plymouth gurus out there for help.I'm almost done with this vehicle, despite replacing the head gasketand exhaust system recently. Here's what has happened -1 - Started the car to leave the office, it stalled out and wouldn'trestart. I have ample spark and fuel delivery.2 - So far I have replaced: plugs, wires, ignition coil, MAP sensor,ECM (power module located along driver-side fender wall behind thebattery), fuel filter, distributor cap, rotor and ignition pickup (HallEffect sensor).3 - The car turns over fine, gets gas into the EFI throttle body(single fuel injector) and spark is ample on each plug/wire, it justwon't "catch".I've checked the error codes via the ignition switch 'on-off-on-off-on'sequence, and all I get is '12 55'. If I'v read the Chilton's manualcorrectly, a code 12 is supposed to be "transaxle unlock relay", whichfor the life in me I have never heard of, unless they're referencing aneutral safety switch. If anyone can tell me if I've read the codeincorrectly I'd sure like to know. I thought the code 12 was theopening sequence for any/all codes off the ignition switch method, butmaybe I'm wrong?I've just ordered a new Logic Module, and am waiting for it to arrive(today/tomorrow), so keeping my fingers crossed. If this doesn't work,I am at a loss to fix this car that up until now has been so good tous.Does anyoe have any ideas what else may be the culprit here??Thanks to all of you in advance!

Apr 06, 2005 21 Replies

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Daniel J. Stern 21 years ago

12 means "Start of codes" _when you are reading the codes via the MIL on the dashboard_ using the key on-off-on-off-on method.

With some computer calibrations, yes. With others, it means "Start of codes, end of codes".

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Joe Pfeiffer 21 years ago

Which is, if I read his post correctly, the situation he is describing.

Then... how would the car be able to indicate recent power loss with no other codes?

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