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J-Spec Swap: Have Fuel, Have Spark, Doesn't Start

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Old 06-02-07, 01:26 PM
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J-Spec Swap: Have Fuel, Have Spark, Doesn't Start

Well, my car wont start.

I tried it yesterday for the first time and it started fine, until it died 7 seconds later. Now, it wont start anymore.

I have spark, I have fuel, but no go.

My BAC valve is making a weird sound...but still, that shouldn't make the car not start....would it?

I put oil in the bottom plud, cranked it and so on...unfludded it...5 times...still wont start.

Any Ideas?
Old 06-02-07, 07:11 PM
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Is it possible that its just really really badly fludded?
Old 06-02-07, 07:17 PM
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i know this sounds dumb, but did you check for leaks in any of your IC plumbing. that was a problem i had when i did mine at first.
Old 06-02-07, 07:17 PM
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Have you checked to see if your fuel lines are not "reversed?" Happened to me...
Old 06-02-07, 07:19 PM
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Fuel lines are ok, and if I had leaks in my IC it would start, try to keep up and then die.

It just doesn't plain start...doesn't even hesitate, just like if it was really Badly fludded...I dont know....

Guess I'll have to try that ATF unfludding proccess...
Old 06-02-07, 07:25 PM
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Maybe there's not enough compression? Bad Compression motor?
Old 06-02-07, 07:41 PM
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Compression is fine too.

+/- 8.0 in front rotor and 7.5 in rear.
Old 06-02-07, 10:41 PM
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Ok....so I made other tests.

Got my compression again to be 100% sure.

Turns out I have 120 PSI in rear rotor and 118 on front rotor.

I have gas, I have air and I have spark...

So my question is: WTF!!!!

I think my BAC valve is faulty, but that couldn't keep my engine from starting atleast....which it did 2 days ago...

Could my gas have turn bad? I run premix and it has been sitting there for 8 months...I have about 8 litres left only...But if the gas turned bad, I figure that the car would atleats hesitate...no?
Old 06-02-07, 10:52 PM
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Or maybe my timing is completly off...!!!

I replace my leading coil. Since its not from an S4, but an S5, could that be a reason for having bad timing? And would that prevent my car from starting?

I figure that if it was a timing issue, the car would atleast hesitate to start....
Old 06-02-07, 11:27 PM
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Spark plug wires going to the right plugs?

So, it turns over, but won't fire and start, right? I just swapped in a rebuilt motor this week and them same thing happened to me. Did a double check of the plug wires and had T2 going to T1 and L2 was on loose. Got that all settled and runs like a champ now
Old 06-02-07, 11:32 PM
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i know what you mean, i just did a swap and the same **** is happening to me..i dont know what the hell it is..pisses me off..i hope you figure it out so i can do it too..lol, as far as im concerned i have no idea, i went down the list and no go..my problem is i do the atf trick and it starts but when i turn it off it wont start again..lame


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