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Thread: S15 sr20det no power at coils.

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Posts: 1-2 of 2
2015-04-20 07:11:06
#1
S15 sr20det no power at coils.
My s15 will not spark and have been trying too sort it the last few weeks..i removed my aftermarket immobiliser which i though was the problem (k9 alarm) stil no spark.Engine is getting fuel,engine turns over no problem,but when i check my plug which plugs into the coilpack i am reading 0v with the key in the on postion.my fuses are all good..but im unsure about my relays?which relay could it be too cut off power too my coil if my pump is priming and engine cranking? Im also getting no faults when i do a flash check...And possibilities or help would be great as my head is melted at this stage 👍
2015-04-22 12:06:48
#2
I'm not familiar with the s15 wiring, but I am pretty knowledgeable about the Nissan ignition system. Basically there are three things that need to be check, the first to are easy being the Ground and power. For the ground, check for continuity between the coil hold down bolt and the block. For the power, and please verify you are checking the correct wire, check for 12v to the primary coil. If no power is found at the coil you can jump this with 12v constant from the battery to see if the car will start. This will not harm anything (theoretically). The last part is verifying the coil is getting the signal from the ECU. This needs to be checked with an oscilloscope since this is an I/O signal.
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