ok i have 2000 and every thing working so far. fixed every thing that had a code but it will still not shout off the check eng. pulled the ground cable to reset still on. and no codes are being thrown. i am getting ready to put 600 mils on it so maby it will throw a code. but it runs grate.

 

try using a real scanner and see what's up.

 

What are you using as a scanner to ck for codes? The engine is not the only reason for the ck ngine lite too come on.

 

autozone scans it. and the selftest on the van

 

neither of which are very accurate. a real scanner is the BEST way to problem solve check engine light issues.

 

If you know someone that works at a dealer,that can scan it with DRB3 or as sapporo had stated, maybe a good snap on scanner. Autozone scanners will only give you engine codes, not transmission,ABS or any other modules.

 

Codes are not always the result of the item or system they name. They are often a symptom created by another problem. Replacing parts based on code name is almost ALWAYS a losing proposition. Yeah...maybe you'll get lucky sometimes. If you can please list the codes so we can help you.

Autozone generates a TON of walk-in business by offering to read codes with a less than adequate scanner. They want you to buy their parts, and when you're wrong...you don't get to return them. One of the biggest scams perpetrated on the American public in years.

The right way to use this service is to get the codes, write them down then go and search for the technical info related to these codes and run the tests if you are able and inclined to do so.

 

yes that all makes sense to me. have to wait till i get back in vegas to have it checked the right way. will keep you posted when i get home.

 

ok have not found the problem yet but did find out that the 3 computers are not talking to each other. but they will talk to the tech computer. so there is a communication problem now we just need to trace it down and get them talking again.

 

Unplug the transmission controller. See if the BUS comm comes back up.