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Warm Start Problem - Should I bypass the FPR Solenoid?

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Old 08-03-04, 02:43 AM
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Warm Start Problem - Should I bypass the FPR Solenoid?

I just spent a good hour searching...and although I found alotta info, it all seems to be kinda confusing. I read that some people say you should replace the FPR Solenoid if you're having problems starting after warming...and then some say I should just bypass it.

Which should I try? The car runs fine, plenty of power, good vacuum...it's ported, so it's a little lumpy, the only real issue is the warm start problem.

If I do bypass it, I should just take the two lines leading to it, and connect them together using a connector?

I'm taking it in to do a compression check on Wednesday. I really don't think it's a bad motor though, because it's done it since I had the engine rebuilt. The engine only has 5k miles on it, and that's all been pretty much relatively light fair.

Is this a good idea?
Old 08-03-04, 03:52 AM
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I recently did the simplified sequential solenoid setup and left the FPR Solenoid in so the car would start when warm, with out it many had problems
Old 08-03-04, 03:55 AM
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Hmmm...I still have the stock sequential setup. Could there be a difference between simplified and stock...one that would cause problems along when removing the FPR Solenoid.

I guess removing it for a bit, and testing it out for one day couldn't hurt could it?
Old 08-03-04, 03:58 AM
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I have the same problem. I have my motor ported, still stock sequential, and I have a power FC. I'm interested in a fix.
Old 08-03-04, 01:17 PM
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your fpr solenoid my be bad but bypassing it if the hot start prob is fuel press related will def not help. try ohming the fuel thermosensor also
Old 08-07-04, 08:07 PM
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how do you ohm the fuel thermosensor? what does this accomplish?
Old 08-08-04, 01:13 AM
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If you by pass it , it will turn on easily when cold but hard when hot.
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