2nd Generation Specific 1986-1992 Discussion

Boost Question

Old 12-15-2004, 02:48 PM
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I suffer from the hesitation problem, and I had a thought, but I'm probably wrong.



Would the ECU cut fuel at 0.5 bar? That's where I'm currently peaking at and I only get the herky-jerky hesitation when I'm at full boost.



Maybe an FCD would help?
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Old 12-15-2004, 03:23 PM
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Probably, my boost doesnt cut off until almost 9psi, then I need the FCD.
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Old 12-15-2004, 06:25 PM
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mine cut out ar a little over .5 too
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Old 12-15-2004, 08:20 PM
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S4 fuel cut is supposed to be 8.6 psi or 0.59 bar.
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Old 12-16-2004, 12:09 AM
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then maybe it is 8psi for me

on the gauge it shows 9, but it is autometer.
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Old 12-16-2004, 10:02 AM
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Originally Posted by HeffSpooled' date='Dec 15 2004, 08:19 PM
S4 fuel cut is supposed to be 8.6 psi or 0.59 bar.



well, the guy who owned the car before me installed the guage pods on the passenger dashboard, so it's kinda hard to look really hard at the boost guage whilst blasting down the boulevard.



footnote:

I understand that the current location of the guages is gay, but they have damaged the dashboard, so removal isn't in the cards right now.....but I'll get to it.
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Old 12-16-2004, 11:08 AM
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I thought the s4 cut fuel @ 7.5 or 8 psi. Atlease that is what my s4 does. My autometer reads 7.5ish when the fuel gets cut.
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Old 12-16-2004, 11:30 AM
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heilige Scheiße!!!!



I think I've found my problem! Now I need a FCD.



Who wants to sell me an S4 FCD?



I needs it!
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Old 12-16-2004, 12:36 PM
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Originally Posted by bacca' date='Dec 16 2004, 09:08 AM
I thought the s4 cut fuel @ 7.5 or 8 psi. Atlease that is what my s4 does. My autometer reads 7.5ish when the fuel gets cut.



the autometer guages arent that accurate, ive seen a 2psi variance between them
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Old 12-16-2004, 01:08 PM
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Build your own FCD. I did and it was a breeze.



http://www.teamfc3s.org/info/articles/fcd/diy_fcd.htm
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