Code help
Thread Starter
Instructor
Joined: Jun 2003
Posts: 176
Likes: 0
From: Columbia SC
Code help
I have three codes. Make that two.
14 - I have replaced the temp sensor and conector. Connector had yellow and black wires, harness has pink and tannish colored wires. What is the correct matchup? Not getting voltage on either wire with key on or motor running.
42 - Replaced plugs, wires, cap, rotor, ignition coil, module and pickup coil tested OK. Timing is set correctly, Cranks and runs but blows alot of smoke for about 20 seconds after startup. What wires do I need to be checking and for what?
54 - fixed this with replacement of fuel pump relay.
Could this all be the product of a bad ECM or is that just my lazy way of thinking? Could just one driver set have gone out? My brain is starting to cramp! Any help you could offer is appreciated.
14 - I have replaced the temp sensor and conector. Connector had yellow and black wires, harness has pink and tannish colored wires. What is the correct matchup? Not getting voltage on either wire with key on or motor running.
42 - Replaced plugs, wires, cap, rotor, ignition coil, module and pickup coil tested OK. Timing is set correctly, Cranks and runs but blows alot of smoke for about 20 seconds after startup. What wires do I need to be checking and for what?
54 - fixed this with replacement of fuel pump relay.
Could this all be the product of a bad ECM or is that just my lazy way of thinking? Could just one driver set have gone out? My brain is starting to cramp! Any help you could offer is appreciated.
Drifting
Joined: Mar 2001
Posts: 1,636
Likes: 3
From: Lafayette IN
Re: Code help (loflyin)
For code 14, the color match-up doesn't matter. The sensor is a thermistor, so either way will work. That is assuming we are talking about the coolant temp sensor on the front of the manifold.
Code 42 sets when the bypass line is open and during some forms of module failures. Make sure the tan/blk wire near the brake booster is connected.
It is easy (well, possible) to blow out a bank of injectors in an 85's ECM. I haven't looked at the internal schematics of the 165 that you have, but it could be possible to blow out one of the quad drivers if there are two. Check your fuses.
Code 42 sets when the bypass line is open and during some forms of module failures. Make sure the tan/blk wire near the brake booster is connected.
It is easy (well, possible) to blow out a bank of injectors in an 85's ECM. I haven't looked at the internal schematics of the 165 that you have, but it could be possible to blow out one of the quad drivers if there are two. Check your fuses.
Thread Starter
Instructor
Joined: Jun 2003
Posts: 176
Likes: 0
From: Columbia SC
Re: Code help (HighHopes85)
yes, we are talking about the sensor below the front of the manifold. Glad to hear that about the wires. So why the code 14? Which fuse should I check? All in the right dash fuse block are good. Found a box in bottom of center dash that has three fuses and I can't read the little white letters under them, but they all appear to be good. Think about it and throw something back my way. Thanks.
Heel & Toe
Joined: Jul 2003
Posts: 16
Likes: 0
From: Austin TX
Re: Code help (loflyin)
if you do not have 5v at the yellow (pink) wire and you are sure that your wiring is good, you very well might have a ecm problem. The ecm supplies the power for it so it probably isn't a fuse. I am not sure what the other code is sorry :flag
