code 94 - idle speed too high

Oct 18, 2004 4 Replies

Hi, I have a 94 SL1 w/ standard transmission. I got a check engine light and the reveled code is a 94, which is idle speed too high (vacuum leak). I checked around and saw no obvious "hose off" or anything. Just for grins, I replaced the PCV and grommet as well as a "not so clean" air filter. The PCV had a real- ly sloppy fit into the valve cover. However, I am still getting the check engine and code 94. If I am at a stop light and sitting there idling, the engine will speedup for a few and check engine will illuminate. Anyone seen this and solved this problem?



chuck



EGR maybe. The replacement PCV parts not OEM?

I'd pull the throttle body and give it a good cleaning while you're at it. Might have a gummed up IAC, and that can do interesting things...

Phipip, What is a IAC?

chuck

Philip Nasadowski wrote:

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