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Another Backfire Issue...

RB20_ZED

By RB20_ZED,
in Engines & Forced Induction

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RB20_ZED Collaborator

RB20_ZED

Posted
Posted

Okay looked at the various backfiring threads but not much relevant info for this...

When the engine is cold (first start of the day), the car backfires and hesitates on acceleration... happens until temp hits about 1/8th... after that it drives perfectly...

THEN on really hot days such as today, after driving/sitting in traffic for around an hour or so (i.e. underbonnet temps hot) - the car backfires on deceleration... the actual temp needle never goes above half though.

is there some temp sensor thats supposed to change the fuel mixture according to temp??? Or maybe the coil packs? im really stumped.

btw its an RB20det

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https://www.sau.com.au/forums/topic/145161-another-backfire-issue/
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  • 2 weeks later...
RB30-POWER Mentor

RB30-POWER

Posted
Posted

its the two pin sensor alongside the single wire dash sender.

you test it first and compare to specs, don't just replace shit like a dodgy mechanic would do.

you can do a search for the specs i have put them up before, but from memory nissans are around 2k ohm @ 20degC water temp and drop to around 0.3k ohm @ 80degC.

Just check it changes somewhere near these readings with your multimeter and you will know if its faulty or not.

you will need to turn the car off and unplug the connector and measure it with multimeter on ohm/resistance scale obviously.

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