Backfire and pullback at 0.5 bar

[vogelspinnen]

Hi guys,

I am running a 4G18 with unichip q and td04L setup. All running fine until I changed to a staged injection setup. Went for retune, car pulled fine till 0.5bar then suddenly car pull back violently and backfired. Kept happening until suddenly, the problem just disappeared. Happily boosted to 1 bar smoothly, went back, off engine, start again and the problem came back! Tuner and I check all wiring and connections and didnt find anything amiss. Any sifus have any idea what's going on? The strangest part was that it ran fine for a while, no problems at all, and suddenly the problem came back after cutting engine.

Thanks in advance for an replies!

 

[DLegend]

replace your spark plugs. Mine had the same problem.... keep jerking back at whatever boost level, no specific time.

After replacing, the problem solved. My mech said if replacing the plugs didn't solve the problem, then it will probably be the coils becoming faulty.

btw, i'm running a 4G18 with Unichip Q and TD04L as well :)

 

[vogelspinnen]

Thanks for the advice bro, will try it out (: