sr20det rev problem!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

2sexi240 · 07-28-2011, 03:43 PM

so i just swapped an SR into a s13. and it drives perfectly normal UNDER 3500 RPM.. when i hit 3500 rpm it bogs and the rpm drops even tho im still on the throttle... and its only boosting 3psi.. ideas anyone??

*economix* · 07-30-2011, 01:37 PM

Wrong MAF, Coolant Temp Sensor, or harness problem are the most likely issues. You would find this already answered a few ways in the Engine Tech Forum if you used the search in there.

Good luck.

ultimateirving · 07-30-2011, 03:01 PM

Quote:

Originally Posted by economix

Wrong MAF, Coolant Temp Sensor, or harness problem are the most likely issues. You would find this already answered a few ways in the Engine Tech Forum if you used the search in there.

Good luck.

or major boost leak, if u have stock sidemount start there.

2sexi240 · 07-30-2011, 11:10 PM

I fixed the problem today. Turns out the coupling on my lower cold pipe was super loose.

07-28-2011, 03:43 PM	#1
2sexi240 Join Date: Jul 2011 Location: hawaii Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	sr20det rev problem!! so i just swapped an SR into a s13. and it drives perfectly normal UNDER 3500 RPM.. when i hit 3500 rpm it bogs and the rpm drops even tho im still on the throttle... and its only boosting 3psi.. ideas anyone??

07-30-2011, 01:37 PM	#2
economix Premium Member Join Date: Feb 2011 Location: Erie, PA Posts: 185 Trader Rating: (5) Feedback Score: 5 reviews	Wrong MAF, Coolant Temp Sensor, or harness problem are the most likely issues. You would find this already answered a few ways in the Engine Tech Forum if you used the search in there. Good luck. __________________ 89 240SX w S14 SR20; 95 JDM 180SX S13 SR20; 09 Acura TL SH; 18 Jaguar XE S

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07-30-2011, 11:10 PM	#4
2sexi240 Join Date: Jul 2011 Location: hawaii Posts: 5 Trader Rating: (0) Feedback Score: 0 reviews	I fixed the problem today. Turns out the coupling on my lower cold pipe was super loose.