no fuel or spark...searched!!

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seanman
Posts: 337
Joined: Mon Aug 14, 2006 8:25 pm
Car: 1989 Nissan 240sx

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ok, so i installed my walbro 255 before installing my sr. the pump is wired and mounted correctly, but when i turn the key it doesn't make a noise and i dont smell gas coming out of the cylinder if i have a spark unplugged...which brings me to my next thing, i have no spark. i checked all the plugs and none of them fire an arc. I've searched and can only think maybe its my ignitor chip.

So whats the deal with the pump and my spark?


duffman1278
Posts: 6816
Joined: Sun Apr 01, 2007 3:09 pm
Car: 89 240sx Hatch, the wildcats!

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Check the fuse for the fuel pump, and as for spark, what ignitor are you using?

blinker_fluid
Posts: 303
Joined: Mon Feb 19, 2007 4:21 pm
Car: 1991 Nissan 240SX FB
2000 Nissan Maxima SE

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Check to see if the ecu flashes when the key is on, its probly the ecm cont fuse by the battery

User avatar
seanman
Posts: 337
Joined: Mon Aug 14, 2006 8:25 pm
Car: 1989 Nissan 240sx

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im using the stock ignitor chip. how much are testers?

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seanman
Posts: 337
Joined: Mon Aug 14, 2006 8:25 pm
Car: 1989 Nissan 240sx

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bump

duffman1278
Posts: 6816
Joined: Sun Apr 01, 2007 3:09 pm
Car: 89 240sx Hatch, the wildcats!

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Grab a test light to multimeter and check to see if you're getting voltage to the plug BEFORE the ignitor. If that checks out, than make sure there's voltage continuing AFTER the ignitor. Also, check your CAS, and verify that it is working. I believe if you turn the key to the ON position, so just don't start it, you can physically turn the little gear on the CAS and hear the injectors click. The voltage should also change as you turn the gear back and foreward. Tells you how in the FSM

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seanman
Posts: 337
Joined: Mon Aug 14, 2006 8:25 pm
Car: 1989 Nissan 240sx

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ok i tested my CAS, with the key on the on position i did what the fsm said. check between terminal b and ground, it went from .30 and kinda skipped around lower then finally stopped at zero. wtf???


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