Search:

I believe there must be reasons of getting rich idle and followed steps of inspecting started with replacing maf, enging coolant sensor and cleaning , testing injectors ...these are which first...

Thank you for your time and appreciated help..i tested your tune and it's still the same and no noticed any changes..

The throttle has been cleaned and checked throttle plate comparing with...

The Throttle is wire.

After writing your last tuning , I can feel trims started to change a bit, however still at parking idle / low RPM is returning to -25 STF&LTF ....

Secondly As you...

The Throttle is wire.

After writing your last tuning , I can feel trims started to change a bit, however still at parking idle / low RPM is returning to -25 STF&LTF ....

Secondly As you...

I appreciate your value considering,

My 2007 Chevy Avalanche is Gen 4 (1500) as mechanic said this generation has no EGR ,I replaced EVAP solenoid valve ... I have checked DTC and there is no...

Thank you for your reply,

Since I bought this truck , I found this issue and code P0172,P0175 sometimes shows on and sometimes not.....I also have no idea about the injectors if it's big or stock,...

Hi all,


I'm new with HP tuners and I would appreciate your kind help to solve some issues in my 2007 Chevy avalanche flex-fuel:


1- rich idle with -25 STF and LTF ...I tried to solve the...