SR20DET Engine stutter hard acceleration - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jorgezee1 · 06-30-2008, 01:21 AM

Thanks, for the Post.
Problem Solved. Ill try to make sense... I'm backing up a bit here, bare with me.
I Bought the Power FC boost Controller kit and partially installed it but didn't have it ready in time for the initial tune so i used my HKS boost controller. So the car was tuned with the HKS controller to .9bar
Turns Out The Power FC Boost controller was activated on the ecu and set to .7 bar or so. Although it was not controlling boost i still had it set up to read boost. So back to my issue, The problem was when i push the car and it hits .7 bar or so around 3,000 - 4,000 rpm the car stutter because the ecu thinks it bieng overboosted and kills fuel immediatly to prevent engine damage. So by turning off the boost controller on the power fc it fix the issue. hope this helps someone.

Thanks,
Jorge

06-30-2008, 01:21 AM	#3
jorgezee1 Zilvia Junkie Join Date: Mar 2008 Location: West Covina Posts: 386 Trader Rating: (22) Feedback Score: 22 reviews	Thanks, for the Post. Problem Solved. Ill try to make sense... I'm backing up a bit here, bare with me. I Bought the Power FC boost Controller kit and partially installed it but didn't have it ready in time for the initial tune so i used my HKS boost controller. So the car was tuned with the HKS controller to .9bar Turns Out The Power FC Boost controller was activated on the ecu and set to .7 bar or so. Although it was not controlling boost i still had it set up to read boost. So back to my issue, The problem was when i push the car and it hits .7 bar or so around 3,000 - 4,000 rpm the car stutter because the ecu thinks it bieng overboosted and kills fuel immediatly to prevent engine damage. So by turning off the boost controller on the power fc it fix the issue. hope this helps someone. Thanks, Jorge