KA24DE, would like extra oppinions: Idle Problem

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JStrateger
Posts: 211
Joined: Tue Jul 03, 2007 6:35 pm
Car: 1992 Nissan 240SX

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Hey guys, I'm having an idle problem with my 240. The KA24DE has probably around 300,xxx miles on it. I know, a lot of miles lol but it runs great through and has 150 compression across the board. It's bone stock, just a K&N cone filter mounted.

Anyways, when I push in the clutch and roll up to stop signs, the idle falls to around 100-200 rpm and almost dies then surges back up. It'll do this about two or three times before stabilizing at about 700-1000 rpm. I'm also experiencing a high idle sometimes, 1500-2000rpm.

Ok, so I'm going to take a look at her this weekend and I'm suspecting either a vacuum leak, EGR valve is getting stuck or maybe a injector is going bad? Do you guys have any other advice on what to check for while I'm in there?

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