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OBD questions

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Would this hurt my Westach sending unit??

Exhaust revisited

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Does anybody know how much an OBD costs that not only tells codes, I can do that w/o the OBD, but I want something so I can do injector kill tests, look at engine RPM and the like. I would like to diagnose this d$#@ idle bounce I have it aggravates the s*^t out of me. I am thinking of just replacing the stupid injectors with better ones. If I have to I will redo the entire fuel delivery system this idle bounce is killing me. Seems like the dang thing idles too slow anyhow, if I look real close at the tach it idles closer to 700 than the 750 mark like about 720, anybody else notice this or am I just too anal. Thanks, Jay
 
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Mine had the idle 'hunting' as well but either I've learned to ignore it or its substantially subsided with the mileage, I'm I'll break 10,000 today!
 
I'm afraid the only system that will allow you to do what you want is the DRB-III, which you can have for the low-low price of $6000 ($4000 on Ebay).



-Ryan :)
 
rbattelle said:
I'm afraid the only system that will allow you to do what you want is the DRB-III, which you can have for the low-low price of $6000 ($4000 on Ebay).



-Ryan :)



Yep, a standard scan tool will only give you some basic data (RPM, coolant temp, thottle position, and a few other things) and OBDII fault codes. The DRBIII is the only tool that will do all the functional tests you want.
 
Just to add to the confusion OBD means On Board Diagnostics II is the second generation. III is going be a lot more helpful. thought it would be on the 04's. It can be a seperate computer from the engine computer.
 
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