S4 Tii Sputters At High Rpm

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04-27-2004, 11:00 AM

#11

j9fd3s

Senior Member

Join Date: May 2002

Location: California

Posts: 22,465

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....

04-27-2004, 05:57 PM

#12

ECKO1980

Senior Member

Thread Starter

Join Date: Nov 2002

Location: Lynwood WA

Posts: 275

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

04-27-2004, 06:10 PM

#13

UniqueTII

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Join Date: Nov 2001

Location: Ames, IA

Posts: 4,773

Mine did that when the TPS was bad.

04-30-2004, 10:52 AM

#14

jahoo88

Member

Join Date: Mar 2004

Posts: 39

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.

05-01-2004, 12:43 PM

#15

Dramon_Killer

Senior Member

Join Date: May 2003

Posts: 1,784

Quote:

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?