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I'm gonna check the TPS again and then...???

But if the TPS is putting out the proper resistance (200-800 ohms) at idle shouldn't that be fine? Won't that at least put the computer in idle mode?


You need the IDL-E2 setting to be under 2300 ohms with the throttle closed, that is what the ECU looks at. In fact both unsteady idle speed and inablility to set base timing are two of the most common symptoms of a TPS out of adjustment:

http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml#Troubleshooting

r.c.brown@ieee.org
TruckEditor@tlca.org
Project: 4Crawler
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