Possible Major Problem!!!!!!!!!!!!

[Ldub]

1404 indicates the EGR valve stuck closed...if that info. is of any help.

[climbcovey]

yeah, already replaced egr valve about 1 monthago

[climbcovey]

Originally Posted by climbcovey
Sure did! Turns out the engine wiring harness had a bad connection, Isuzu wanted to replace the whole thing at the tune of $450 Part, $650 labor. But only one harness in the country so they would have to order it (I found the 1 harness with the help of merlin, I got it on hold for a price of $350. Then I went home, disconnected all the connections of the harness under the hood, cleaned them with electrical cleaner, lubed them with di-electric grease and problem solved! Cancelled the parts order and saved $1050. I did however still have an idle problem ( sticking and/or slow to return to baseline) That turned out to be a gummed up IAC (?) sensor. I think that's what it was called but its located on the front/top of the throttle body and controls the idle. I cleaned this with throttle body cleaned and sea foam, as well as the egr once again and put a screen on the egr to burn off any excess carbon and prevent build up. Put it all back together and she's as good as new. By the way, I am at work right now would you mind cutting and pasteing this email to that thread so all can read? I can't do it at the moment. Thanks Chris