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Hey all,

I have a 97 Stagea with the rb25det which is the series 2 engine and am having an issue with the car missing once the car is warmed up.

I've tried the basic things like:

- clean afm

- replace afm with a known working one.

- new plugs

- wrapping coil packs in electrical tape

- testing coilpacks. I get nothing with these as when the car is cold it runs perfect.

So, I'm getting down to the harder stuff now and am blaming it on the coilpacks.

Is there anyone out there with a set or even a single one I can borrow for cash or beer so I can narrow this fault down before forking out for a new set.

Any help would be appreciated.

Thanks

Shaun

Check your spark plugs again, see if they are all black covered by unburn fuel. if so then it is most likely

the ECT sensor (Engine Coolant Temperature). Locate near the thermostats housing.

What it does, it sends signal to the ECU to tell what temperature coolant is and adjust the fuel mixture accordingly.

So if the sensor is not working properly, even when the coolant is hot, the ECU still think the coolant is cold

and still gives really rich fuel mixture and result in heaps of unburn fuel and rough idling and engine spluttering and

coughing black smoke out the exaust when the engine is hot.

Hope this help mate and good luck.

PS : ECT sensors are roughly $30 retail price, and you can use the one from Nissan 350Z or 200SX or even Navara.:thumbsup:

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