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-   -   S4 Tii Sputters At High Rpm (https://www.nopistons.com/2nd-generation-specific-17/s4-tii-sputters-high-rpm-37905/)

j9fd3s 04-27-2004 11:00 AM

it might be ignition (wires, plugs) but i'd go for the fcd first. my t2 would hit 11psi with an intake and a cat back....

ECKO1980 04-27-2004 05:57 PM

Yeah I know all about FCDs I have two knightsport units and im going to slap one on his car, just have to find it. Developed a vacume leak yesterday while we were driving it, well thats a new problem lol Idol will go up and down and when you start it it revs up high like past 3000rpm time for new vacume lines I guess https://www.nopistons.com/forums/pub...IR#>/wacko.png

UniqueTII 04-27-2004 06:10 PM

Mine did that when the TPS was bad.

jahoo88 04-30-2004 10:52 AM

Was the problem resolved with the FCD?

My car just started doing the exact same thing you describe and i have a good working FCD. I changed my plugs and im gonna change my leading coils, i hope it goes away.

Dramon_Killer 05-01-2004 12:43 PM


Originally Posted by Jims5543' date='Apr 26 2004, 07:05 PM
There is a "pill" in the line from the Manifold to the boost pressure sensor. If this is removed your ECU gets all confused. Common mistake is to replace the vacume lines and toss the pill with the old line. Not knowing its in the line.

I couldn't find the pill you were talking about jims, where can i pick one of these up? Mazdatrix?

j9fd3s 05-01-2004 01:41 PM


Originally Posted by Dramon_Killer' date='May 1 2004, 09:43 AM
I couldn't find the pill you were talking about jims, where can i pick one of these up? Mazdatrix?

try mazdaformance or the dealer

jahoo88 05-02-2004 01:41 AM

Just an update: I changed my leading coil and igniter and the hesitation at 5k rpm in 3rd gear went away.


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