Did I break my truck?

[89RCLB]

Did you disconnect the battery ? If so, this cleared your codes, but don't panic. If you are not getting a flashing SEL, it means there are no codes.

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You should at least be getting a code 12 with a jumper between A and B and the key in the ON position. No other codes means no other faults. Code 12 is normal.

 

[kennythewelder]

You should at least be getting a code 12 with a jumper between A and B and the key in the ON position. No other codes means no other faults. Code 12 is normal.

X2

 

[Richard Jones]

That's exactly what I thought. So the fact I'm getting nothing is not good.

 

[Richard Jones]

OK update... I am getting codes 15,22,34 which is tps, map, and temp sensor. 2 of those have been replaced. If I unplug the temp sensor during idle I see no noticeable change. Does this mean I may have found my problem?

 

[kennythewelder]

Maybe

 

[kennythewelder]

I know when I had my 93 WT I changed several TPS. The truck would idle strange, fast some times, just not normal, but this would also throw other codes. Just throwing parts at a problem is not the best way to find it, but if the parts are cheep enough, and it teaches you something about your truck, then its all good, I guess. My TPS issues would start after washing my engine @ the car wash, just FYI.

 

[michael hurd]

Do an IAC re-learn procedure. Check all vacuum hose connections. Grab the throttle linkage and see if you can get any movement out of the shaft. ( IE- wore out bores in the throttle body )

Check all grounds to the engine, not just a visual check... check them for resistance with a multi-meter. Remove the distributor cap and rotor. Inspect the distributor pole piece magnet for cracks with the aid of a magnifying glass.

The ECM is after all, a computer, GI=GO.

 

[Richard Jones]

I definitely had a bad connector on the temp sensor, replaced that and the temp sensor. Still have high idle still have codes 15 and 22 Temp Sensor and TPS. I have spent way too much time and energy on this high idle. Had a few ppl look at it, nobody has figured it out yet. Too depressing to see my truck sitting not being driven lol. Might as well keep searching for a good mechanic and throw in a bunch of $. Will probably save me in the long run. I appreciate all the suggestions and help from you guys. But I'm tired of fighting this thing and I could never sell it, too much money in it. Time to throw more in.

 

[89RCLB]

Did you disconnect the battery for several minutes to clear the codes after you fixed the temp sensor? If you didn't those codes are still stored.

 

[Richard Jones]

Yes I did. I kept the battery disconnected during installation because I replaced the connector also