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Thread: Dun Dun Dunnnn. CEL Code 43 is backkkkk :( Reply to Thread
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  Topic Review (Newest First)
02-08-2012 03:59 PM
EagleSC I'll keep that in mind...
02-08-2012 02:46 PM
cdmccul Before digging into the injector o-rings, unless you know it is leaking, why not do a fuel pressure test? While you have the intake off, do a compression test if you can as well.

Some terms that may help -

To CRANK is the act of the starter running, engaging the flywheel, and the engine being turned over by the starter - has nothing to do with fuel burning in the chambers or the spark plugs firing.

To RUN is the engine turning over under its own power - the starter is no longer running.

A CRANK NO START is the engine that is stuck in the CRANK mode, and won't run on its own.

To ENGAGE generally refers to the starter motor not meshing with the flywheel - the starter motor turns under electrical power, but the gear on the starter won't engage with the flywheel.

Hope that helps.
02-08-2012 01:36 PM
EagleESI yeah, I said 42 but ment 43.

43 is the generic OBD 1 code when you pull the codes by the cel. However I am willing to bet if you use an actual code puller you will see Misfire cyl one.
02-08-2012 11:19 AM
EagleSC Thx for all the input I did the key dance and got blink code 43...and i might have not been clear when I said it wouldn't crank, If I turned the switch the engine would get a spark and would turn over it just wouldn't engage. I did not ever have a code 42, just code 43. Like I said the car runs fine I just keep getting the CEL.

I just got the code again last evening and haven't got the chance to shoot the wires but i did check the connection wires to the PCM this morning before I left. I'm gonna try changing the o rings on the injectors when I get back next week and see if that's causing it.
02-08-2012 10:35 AM
cdmccul According to the FSM:

Code 42 Auto shutdown relay (ASD) control circuit indicates an open or shorted circuit condition.
Code 43 Peak primary circuit current not achieved with the maximum dwell time.

if you have code 42, no idea what I can do for you.

Code 43 - that has to do with your ignition - spark plugs, coil, coil driver in the PCM.

Control of spinning the starter shouldn't have anything to do with the PCM - I'll be changing my PCM in the coming week, I'll test that when I unplug mine - before plugging it back in, I'll hit the key. The PCM only controls the shut down relay (ignition), fuel pump relay, firing of the injectors, and firing of the coils, based on inputs from things like the crank, cam, and temp sensors (and several others)...

Have you done any compression checks?
Have you tested the resistance of the coil (both primary and secondary)?
Have you checked connections at the coil (both primary and secondary)?
Have you checked connections at the front passenger strut tower?
Have you checked your connections at the PCM?

Code 42 and 43 have nothing to do with your injectors or gaskets.

But to clarify for us - the code "43" - is that OBDII code "0043", or is that the first gen CEL blink code, "43"
02-08-2012 10:19 AM
EagleSC The car has been running smooth as silk since I changed the gasket and replaced the injector even with the CEL...i'm wondering if the code 43 maybe leftover from before it was fixed? Does the PCM store codes and is there a way to reset or clear it besides pulling the neg battery cable?
02-08-2012 12:56 AM
cdmccul Thanks for the insight, Devan!
02-07-2012 11:46 PM
DrDodge gee,, have you checked the compression?
02-07-2012 11:41 PM
EagleESI #42 for OBD II is generally Misfire on Cyl one. Check plugs, gaskets, and injector again.

Far as I know, and even looking at the FSM wiring diagrams, the 12 volt source wire for the starter solenoid does not go through the PCM but comes right from the ignition switch.
02-07-2012 09:35 PM
EagleSC I really hope its not a bad wire!
02-07-2012 09:27 PM
Originally Posted by EagleSC View Post
i don't have the old one anymore but I did put it back in once to make sure it was the fix and it did not crank
Hrrrm - o.k. Well, that is a good enough proof to know that your fix was it!
02-07-2012 09:27 PM
cdmccul Can what cause a #43? PCM is issuing the codes, so if the PCM is confused, it can issue anything it wants to. #43 has to do with ignition, so I suggest checking your connections on your PCM, and at the coil, and at the passenger shock tower. Make sure you don't see any damaged wire loom (externally) and then either swap coils or swap PCMs... While you are checking the connections, make sure you have good looking secondary ignition coil contacts too (where the plug wires attach).
02-07-2012 09:25 PM
EagleSC i don't have the old one anymore but I did put it back in once to make sure it was the fix and it did not crank
02-07-2012 09:24 PM
EagleSC But can it cause a code 43?
02-07-2012 09:22 PM
cdmccul Do you still have the original PCM? I'd try swapping it back if you do...
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