Code 35 having to do with idle would make more sense to me since it idles rough & sometimes stalls at a stoplight. I checked the codes 4 times and still got code 35.

 

Yours must be an updated version for mine covers 71 thru 99 and does not have the 10A3 portion of the number.

Thanks

 

From the '90 FSM, p 14-34:

35: Idle Switch Shorted or Idle Switch Opened

1st - idle contact switch input circuit shorted to ground
2nd - idle contact switch input circuit opened

 

Yes it does since the PCM would not engage the OD or TCC if it can not tell for certain that the engine was above idle speed. The PCM may be sensing that the engine is at idle when it is not.

 

Mobile,

Under the
(10A3- 30065)
is
(349)

Says also
copywrite Haynes North America 1996,1998.

Mine also says a code 15, which I regularly get due to sticky contacts in my VSS will iluminate the CEL, but it does not.

Back when I was having ECM issues, and I was ordering new ECM from Cardone through Rockauto, I was ordering the ECM listed for the Auto tranny, but it was not going into overdrive. It wasn't until I opened up the old unit that I found out that the numbers listed for the Manual and Auto trannies were backwards on both sites.

Rockauto never refunded my shipping costs for having to ship and return the wrong units, but when I informed Cardone I at least got a thank you and both websites were updated within a week.

So it's possible the previous owner replaced the ECM, and replaced it with the wrong unit, for a manual tranny.

Get a torx bit and open it up. read the numbers on the bottom circuit board. Check the part numbers on the Rockauto site.

 

I think we are getting much closer to the problem. If I can get the idle circuit fixed, then I will know if the PCM is actually defective.
I will also cross reference the #s to see if the correct ECM is there.

 

Found mine, I had been looking only on the front cover.
Mine is:
(6C4-30065)
(349)
Copyright 1996,1998, 2000
So I have a latter book with the incorrect information, so what else is new.

 

Correct, though the dodge place should have already known of the issue when they were connected to the PCM. But most of the technicians that work there may not be very familiar with the older PCM.

I usually make a joke that they (dealer service departments) could not work on my 77 Chevy because they could not hook up their code scanner to it.

 

can someone tell me if the idle control switch is near/on the TBI or somewhere else?

 

On the TBI on one side of the throttle plate. Find where your throttle cable hooks to the TBI and right above it you will find a little electric solenoid with a adjustable bolt sticking out of it and touching the throttle arm. That is the idle control switch.