Hesitation at 3500rpm

[V8hntr]

I have noticed when I accelerate in any gear at low boost 10 or hight boost 15 when the engine reaches 3500 rpm there is a slight hesitation and as soon as it passes as if there is a fuel or igntion cut this region it runs fine . I have no codes, replaced TPS sensor and ignitter. There ones another person with the same symptoms and he thought the problem was due to the faulty ACIS. Could I have bad coils?

built 7mgte 60 trim comp, 10°clip exh ct26 ,91 octane california gas, lex AFM /550's AFPR, no egr, cat, coal canister, or bs

 

[dbsupra90]

no acis on the gte. dont know how severe or a hesitation you are talking about. but thats right around the crossover point of 9v/12v to the fuel pump. mine used to do that until i did the 12v for the pump.

 

[TurboWarrior]

make sure there is no leaking going on between the afm and turbo. Though it sounds more complicated than that check it out. I had problems like this when i reassembled my motor. I ended up disassembling half the motor again but it was actually my accordian leaking

 

[V8hntr]

thanks for the input guys. I will try the fuel pump and run constant 12 volts and check for any leaks.