SR20DET Miss Fire\Bucking - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Engmus · 01-20-2019, 01:27 PM

Hey Guys, looking for some opinions as these things are always hard to troubleshoot over the interbutts.

91 240sx\SR20 Blacktop Swap

Issue: Car bucks\misses after warming up at highway speeds. Feels like a misfire, although happens really sporadically.

Troubleshooting thus far:

TPS Reset - Good
New Fuel Filter - Good
New Spark Plugs - Good
Throttle Body\IACV Cleaned - Good
New Walbro 255 Fuel Pump - Good
Vacuum leaks - None detectable at this point, will continue to look.
Repinned CAS sensor wiring and replaced harness side plug - Good

I suspect at this point Cam Angle Sensor faulty or Igniter Faulty.

Anyone have any ideas? Things to check?

01-20-2019, 01:27 PM	#1
Engmus Leaky Injector Join Date: Mar 2016 Location: PA Age: 33 Posts: 104 Trader Rating: (1) Feedback Score: 1 reviews	SR20DET Miss Fire\Bucking Hey Guys, looking for some opinions as these things are always hard to troubleshoot over the interbutts. 91 240sx\SR20 Blacktop Swap Issue: Car bucks\misses after warming up at highway speeds. Feels like a misfire, although happens really sporadically. Troubleshooting thus far: TPS Reset - Good New Fuel Filter - Good New Spark Plugs - Good Throttle Body\IACV Cleaned - Good New Walbro 255 Fuel Pump - Good Vacuum leaks - None detectable at this point, will continue to look. Repinned CAS sensor wiring and replaced harness side plug - Good I suspect at this point Cam Angle Sensor faulty or Igniter Faulty. Anyone have any ideas? Things to check?

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