help with DBW
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Joined: Sep 2005
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From: visalia california
help with DBW ok got the truck running. 5.3 with DBW. i have the tach module, foot pedal all hooked up. when you turn the key to on you can hear/see the throttle blade move just a hair, but when you start it, the engine just idles. any ideas????
You are going to need a scan tool to make life easier....have to monitor the TPS sensors built into the pedal assembly, commanded vs actual positions...etc....
The features you need are probably only going to be accessable with a TECH2 scan tool. maybe some good other scanners may get to that....
are there any codes in the PCM? can you at least check that?
The features you need are probably only going to be accessable with a TECH2 scan tool. maybe some good other scanners may get to that....
are there any codes in the PCM? can you at least check that?
Thread Starter
11 Second Club
iTrader: (5)
Joined: Sep 2005
Posts: 752
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From: visalia california
ok been through this crap for a while getting ready to burn the damn truck, dbw still inop been over it and over it,(even with a tech and a snap on scaner) keeps giving me a p0122 code, could this be due to a tune? i pin tested the tps, seems to be well within range i also double checked wires and replaced the foot pedel sensor what next?????? help please
also when commanding the throttle to move up the with the scanner it did begin to rasie then is went back to idle and ignored the command after that (rpms only rasied a little the first try)
also when commanding the throttle to move up the with the scanner it did begin to rasie then is went back to idle and ignored the command after that (rpms only rasied a little the first try)
Launching!
Joined: Sep 2008
Posts: 234
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From: Ashland,VA
did you look at the TP sensor voltage on the scan tool? Did it show 0v or less than .1v? If so check the 5v reference circuit for proper voltage. Those Throttle boddies are known for those kind of issues in their original vehicles.
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