SR20det not maintaining idle and engine dying. Please help. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

ZenkiDK · 08-21-2016, 09:39 PM

Hello everyone, just picked up the car about a month ago. Previous owner did the swap (redtop) and I am just getting familiar with everything. Yesterday, after starting it and letting it idle for 20 minutes, it began sputtering, I saw the rpm drop to the point where the engine was backfiring and struggling. After shaking numerous times the engine shutoff.

Things I have found:
No O2 sensor (Not sure if it is related as the car ran fine without it up until yday)
When I give it gas, it struggles/hesitates, but once in a while the rpms do go up.
Coolant temperature is normal most of the time, but on hot days, when idling, it reaches H.
Unplugging the MAF and TPS allows the car to idle fine, but the second I give it gas it shuts off.

Things I have replaced:
ECU
O2 Sensor
Fuel filter
Temp Sensor (dash and ecu)
Spark plugs

Videos:
https://drive.google.com/open?id=0B1...U5Ea3l3N19jeW8
https://drive.google.com/open?id=0B1...FU5MmF0TWJJd00
https://drive.google.com/open?id=0B1...EZoanVnNElfbW8

I can provide more information, please let me know. Any help will be appreciated. Thanks.

08-21-2016, 09:39 PM	#1
ZenkiDK Leaky Injector Join Date: Sep 2014 Location: Michigan Posts: 79 Trader Rating: (1) Feedback Score: 1 reviews	SR20det not maintaining idle and engine dying. Please help. Hello everyone, just picked up the car about a month ago. Previous owner did the swap (redtop) and I am just getting familiar with everything. Yesterday, after starting it and letting it idle for 20 minutes, it began sputtering, I saw the rpm drop to the point where the engine was backfiring and struggling. After shaking numerous times the engine shutoff. Things I have found: No O2 sensor (Not sure if it is related as the car ran fine without it up until yday) When I give it gas, it struggles/hesitates, but once in a while the rpms do go up. Coolant temperature is normal most of the time, but on hot days, when idling, it reaches H. Unplugging the MAF and TPS allows the car to idle fine, but the second I give it gas it shuts off. Things I have replaced: ECU O2 Sensor Fuel filter Temp Sensor (dash and ecu) Spark plugs Videos: https://drive.google.com/open?id=0B1...U5Ea3l3N19jeW8 https://drive.google.com/open?id=0B1...FU5MmF0TWJJd00 https://drive.google.com/open?id=0B1...EZoanVnNElfbW8 I can provide more information, please let me know. Any help will be appreciated. Thanks. Last edited by ZenkiDK; 08-31-2016 at 11:12 AM..