C Murda

iTrader: (24)

i got the car tuned in Speed Desnsity about a year in a half ago with no problems till recently...the car will start to choke or "hiccup" if im in a lower rpm higher gear than 1st and trying to accellerate? im not sure if its maybe the weather changing thats causeing this but at this time last year my car didnt give me any problems at all. not throwing any codes either... ive also just recently noticed if im getting on it hard it will back fire in between shifts? which isnt normal at all and has never done that till a day a go...

carlrx7

SD tunes are ok as long as your elevation doesn't change much and your runing in CL. if your always runing OL. might be time for a retune. try a small tune up with a compression check before changing the tune.

-Carl

C Murda

iTrader: (24)

Is there anyway I can tell if I'm running in OL or CL? I'm pretty sure I was tuned in closed loop and I always let the car heat up before I drive it so dunno why I would be running in open loop especially when I'm at WOT? Wish I had the money to just go get a retune

C Murda

iTrader: (24)

Well I decided to check out my plugs (ngk tr55) and to me they looked fine but I put in some new tr55s and the backfiring seemed to stop..?

C Murda

iTrader: (24)

Well she's backfiring again and it's in between shifts not only at WOT either...? What could be going wrong? Sensors? It is mafless SD tuned...

C Murda

iTrader: (24)

Might I add all this seemed to hav happened after my lingenfelter 2step instal

KRAZY K 2000 TA

iTrader: (5)

so just unplug the two step and see if it still does it! mine did that same thing and i switched my two step coil pack plugs around and it quit but it should not have made a difference. also when i had bad plug wires it did the same thing .