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Hi, I have a S13 Silvia with a RB25det in it. While I am driving the engine will shut down then restart. but if i put my foot on the clutch it won't restart unitll i turn key or kick start it by releasing the clutch. I have changed the crank angle sensor and still does the problem. I unfortunatley cannot check faulty leds on ecu as it has no led and the engine light on dash isn't connected.

Can someone please help me with this problem. Thank you

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Are you running the stock RB25DET ECU as well? You might be able to pull the fault codes outta the ECU if that is the case.

I think the only reason it comes back alive if you don't press the clutch is because you're essentially hill-starting it.

What sort of driving are we talking about? Just cruising along and then it stops, or are you gunning it and coming off the throttle really hard?

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Are you running the stock RB25DET ECU as well? You might be able to pull the fault codes outta the ECU if that is the case.

I think the only reason it comes back alive if you don't press the clutch is because you're essentially hill-starting it.

What sort of driving are we talking about? Just cruising along and then it stops, or are you gunning it and coming off the throttle really hard?

Just normal driving. when it is kept in higher rpm it doesn't do it. it is running stock ecu. how can the code be pulled of it if there is no leds on the ecu.

thanks for your reply

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Is it just dropping revs and cutting out as if the idle is too low?

could be the A/F maps all screwed

The engine just dies. you hear the engine purring along happily then the engine just cuts out and goes quiet. like if you turned the key off.

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it is only occuring when you come off the accelerator pedal? if so it sounds like atmo bov or incorrect bov setup. check bov and what type do you have? if its an aftermarket unit go back to stock one

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it is only occuring when you come off the accelerator pedal? if so it sounds like atmo bov or incorrect bov setup. check bov and what type do you have? if its an aftermarket unit go back to stock one

it doesn't matter whether the accelerater is going down or going up. The bov is still stock. it mainly happens while i am just cruising along. it has also happened when i have gone to take off sedately. but if the revs are kept up it doesn't happen. it has also happened while the engine was idling. there was no splattering or anything. it just stopped.

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how long have u had this conversion in the car 

sounds like its your m.a.f (mass air flow ) sensor  is screwed or when some one did the wiring harness they either didnt hook a sensor up or its a bad connection to one of your sensors

It has been in the car for about over a year now and it has not had a problem up until now.

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By the sounds of things its not sensor related because if it where a loose wire to a sensor or one of the sensor/s itself the ECU would go into a backup mode wether it be limp home or just change to another set of parameters and the car usually still runs.

How I interpreted your post is like it was a straight cut of the ignition as in no cough and splutter then cut. So check your connection to the ecu. Also while the car is idling shake the ecu and the loom and see if anything happens.

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