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spark only when i turn key off?!?!. (Updated 4/17)

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spark only when i turn key off?!?!. (Updated 4/17)

Old 04-14-2007, 02:28 AM
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Default spark only when i turn key off?!?!. (Updated 4/17)

ok so im getting fuel and everything, pump works. but now i see i dont get spark when starting the car. but when i turn the key off. it sparks and ignites the gass in the engine and makes the "POOF" sound in my video.

does anyone have any idea whats up with that?

Only things i can think is bad ign switch or bad relay somewhere. maybe wiring but i checked 99% of my wires.

I have a 90 integra GS 5spd. converted to obd1

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Old 04-14-2007, 03:38 AM
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Default Re: Car wont start after new pump.

is your battery dead!!!! lol
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Old 04-14-2007, 04:37 AM
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Default Re: Car wont start after new pump.

Check for voltage at the pump connector wires while you have someone else turn the key to the ON position.

Check your main fuel relay as well...
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Old 04-14-2007, 10:08 AM
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Default Re: Car wont start after new pump.

I might throw a charger on my battery, it doesnt seem dead. its only a year old and i started it not long again without a problem.
I will check my fuel relay, my starter signal and hot wire are good, i dont under stand why the starter wont even attempt to kick on, its new also.
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Old 04-14-2007, 10:46 AM
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Default Re: Car wont start after new pump.

did u dick with any ground under the hood? did the same sorta thing when i bolted a ground wire to the wrong hole ...
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Old 04-14-2007, 04:14 PM
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Default Re: Car wont start after new pump.

The only ground i took off was the one from the valve cover to the body. which i put it back on. and i pulled the tranny and put the other ground back on. so i donno.
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Old 04-14-2007, 04:43 PM
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Default Re: Car wont start after new pump.

does the pump turn on?
can you here it?

if u can here it the wires on the pump can be backward
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Old 04-14-2007, 04:49 PM
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Default Re: Car wont start after new pump.

ya the ground by the tranny to the body, make sure its rite, thats the ground i duched up and but on the wrong spot, and did the EXACT same thing. lol
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Old 04-15-2007, 10:43 PM
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Default Re: Car wont start after new pump.

Ok so heres what i got so far. i added and extra beefy ground wire to the tranny side and mounted it in a different place. so now it is trying to start. but when my fuel pump kicks on it sounds like all it is doing is sucking air. i start to get Some pressure on my fuel pressure gauge but it shot right back down after i try to start. also you can hear some built up air pressure blow out after i turn the car to the Off position.

I am getting spark for sure but im just not sure about the fuel i can smell fumes and some smoke comes out after i attempt to start it and it smells like exhaust. but it just wont turn over fully.

Here is a video and snapped a few pics of the project with my video cam.




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Old 04-16-2007, 11:00 PM
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Default Re: Car wont start after new pump. (Updated 4/15)

Ok so i just got back from the garage. when i am trying to start it after i turn it off and you hear "poof" sound that is the only time i see spark from my distributor.

I forgot to mention that i did an obd0 to obd1 swap on this car too.
I did all the stuff for it too

obd1 distributor
4 wire o2 wireup
obd1 computer

I tried to use both computers and it seems when i am trying to start it, there is no spark and when i turn it off and hear a poof sound, i see an arch from a spark wire to the distributor. Also i put 2 more gallons of gas in the car and now im getting fuel pressure that is stable. and not just hearing lots of air sucking.

I can smell exhaust when it "poof"s i donno, i am going to check my wiring on the distributor i guess. Because the fuel pump seems all good.
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