** Stuck @ VIR, Engine Stuttering Under Load **

[Paisan]

Guys, we have the racecar @ VIR, car is ok, but have an issue that's a real problem since we have a race tomorrow and a sprint and 3hr enduro on Sunday....


Details:
2.2t 1994 Legacy 5MT

Issue:
Under load, in partial or full throttle engine is stuttering, like fuel or spark starve.

Things we are pretty sure it isn't:
Fuel Pump
Wires
Plugs
Fuel Filter

Thinking it is possibly TPS or MAF or some other electrical/ignition issue. Please let us know if you have any insight let us know ASAP.

Thanks.

-Mike

[Legacy777]

Have you checked for any codes?

Have you pulled plugs to see what they look like?

[douglas vincent]

Water temp sensor! Always good for the bar bet!

Good luck.

[Paisan]

Have you checked for any codes?

Have you pulled plugs to see what they look like?

Nah, haven't checked, probably too many in there, although I was looking for the diagram of where the test connectors are I think the page dissapeared a while ago

Bought new plugs, wires, and fuel filter tonight so we'll start by putting them in tomorrow.

-mike

[DLC]

Josh has a nearly identical page somewhere:

http://legacycentral.org/library/literature/codes.htm

[Paisan]

Josh has a nearly identical page somewhere:

http://legacycentral.org/library/literature/codes.htm

Thank's Josh's site doesn't have it anymore.

-mike

[Legacy777]

Uh....yes I do
www.surrealmirage.com/subaru/engine.html

[Paisan]

Just a followup, in case anyone searches and has the same problem.

Apparently it was boost-creap created by a split downpipe. When we put it on the trailer in NJ before heading down we scraped the Graham Goode Turbo-back on the trailer this split the downpipe. This is what was causing the boost creap and thus the stuttering.

-mike