well i have been having problems with my truck cuttin out when i reach full boost at about 3/4-wot. i regapped my plugs the other day to see if that would help but it didnt. the thing is sometimes it wont cut out or jerk like it usually does. my afr under wot is 11.0 so i doubt my fuel pumps are bad. if the pump was bad it would be alot leaner than that wouldnt it? next i might replace the fuel filter and see if that helps or maybe there is a problem with the fpr(how do i check and see if thats bad)? also when its wot i get a fuel smell inside the cab.

any help is appreciated.

thanks

 

What kind spark plugs and wires?

 

Does the truck feel like missing? When start going over 6lb of boost the truck would jerk but was missing because I was blowing out the spark. I put new spark plug wires and fixed the issue.

 

im running tr6 plugs and some old msd wires. plugs are gapped to .030.

 

this issue just started about a month ago, it wasnt doing this when i first got the truck running. do plug wires just go bad like that?

 

^^^yes they do...maybe a cracked plug...

 

if your fuel pressure regulator is leaking you would have troubles starting every now and then. but shouldnt mess with your normal driving if your pump is good because the pump will just compensate for the missed fuel i believe

 

I can't tell you how many trucks I see that start missfiring while I tune them.Always turns out to a be a plug wire burnt and arching on a primary,it really gets aggravating sometimes because it happens so often.LOL 90% of them have the msd wires also!!

 

I would replace the spark plug wire if it was me. You have fuel if af is in the 11's. When I had this happen it wouldn't through code.

 

Wheatley
What plug wires would recommend for custom wires? Need custom wires for turbo set up. Thanks