misfire problem

00 white lightn

New Member
Established Member
Joined
Mar 2, 2006
Messages
126
Location
NC
still having a misfire issue, it goes away when egr is disconnected., timing is at 40 degrees with egr hooked up, drops to 30 when it is unhooked, it misfires under light throttle with egr hooked up. i have no codes, i put a new egr valve on it, a new dpfe, and a new egr solenoid, same problem. i have correct voltage getting to the dpfe, and to the egr solenoid, the egr works i put vacume on it and it stalls the truck, but going down the road it stalls at low rpm, the battery did die on the truck, so it may be going through the computer relearn. but i did not have this problem until the battery died. and until i put the headers on it. (both happened in same time period)
 

PhLoBuS

JDM/KB Lightning
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Mar 19, 2004
Messages
4,625
Location
Beverly, MA
I believe its got something to do with our headers and the back pressure but this is just a guess.
 

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