ChaseSS

iTrader: (17)

I have noticed for the past month or so that when I hop on it and rpm's go over 5,000 the engine stutters for a second.... anyone know why this might be? I installed headers, ORY, catback, 160 stat and had the EGR, AIR, and rear O2's deleted and it drove fine for over 2 months and now this happened... I have no ideas what this is caused by but any help is appreciated. Mods can move this thread- i don't know where it goes or if this is the right thread. thanks

black00TA

iTrader: (3)

did u replace your plugs when you did your header install?

how many miles on your car?

ChaseSS

iTrader: (17)

I didn't replace the plugs (but obvisously I had to remove and then reinstall them plugs) and there are 21xxx miles on the clock

Brandon Boomhauer

iTrader: (10)

first, wrong forum.

next, pull a few plugs and check them

changed the fuel filter lately?

ChaseSS

iTrader: (17)

okay, I will try that thanks and sorry for the wrong forum

exstanger

iTrader: (4)

Check out this thread almost the same problem I had a few weeks ago. Why did you have to pull the plugs out to do the headers? Any way I digress. Just out of curosity how cold was it when it had the problem.
https://ls1tech.com/forums/general-maintenance-repairs/402608-backfires-drive.html

ChaseSS

iTrader: (17)

sorry, I wasn't thinking correctly..... I removed the plug wires and only one of the spark plugs just to see what was in it. thanks for the help

black00TA

iTrader: (3)

a plug change is def needed when doing headers.

low rpm hesitation and spudder would be suspect for fuel filter, not high rpm.

dragonfly

Sparkplugs are a great idea.

Other suggestions would be a fuel filter.....

And worn out springs (less likely due to motor age)
My motor has 88K on the clock and has a distinct loss of power from 5200 to
5700RPM and picks back up.

Just a thought