 94 st idle/running issues |
 Jun 7, 2013 - 3:32 PM
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Enthusiast Joined May 23, '13 From chicago Currently Offline Reputation: 0 (0%)  |
Car: 1994 st manual trans all stock apart from eBay intake on car prior to purchase 140k on the clock.
Background: car was purchased a month or two ago, immediate tune up was done (plugs wires cap and rotor valve cover gasket and pass window switch fixed) also installed HID's and a radio to demo to customers at my work. Car ran tip top for about 2 weeks. Problem and symptoms: when starting and idle car idles at approximately 500 or lower RPMS. Car stall occasionally when idling after start up. For first few mins of low idle engine will not rev above 1k if I'm lucky. When car decides to cooperate (anywhere from one minute to five) she revs till red line however 1k to 2.5k severely bogs and its slow after 2.5k. Car has almost no power under load. Passing on the highway is next to impossible. I need some help here people. Any ideas? |
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Replies
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Jun 8, 2013 - 2:09 AM
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 Enthusiast  Joined May 25, '13 From Charlotte, NC Currently Offline Reputation: 0 (0%) |
A faulty IAC only affects the car immediately after start up and until the car warms up. When accelerating the IAC has no additional function. Don't know what else it might be but I would dismiss a faulty IAC. Also, IAC will have absolutely no influence on power under load.
How's your throttle body? MAF? CAT? We'll go on after checking all these out. |
Posts in this topic
Kennyb8709 94 st idle/running issues Jun 7, 2013 - 3:32 PM
Kennyb8709 Update: replaced the TPS because the plastic housi... Jun 7, 2013 - 7:10 PM Box Idle Air Control Valve. Jun 7, 2013 - 8:35 PM timdog1720 /\ /\ /\ /\ /\ I agree Jun 7, 2013 - 11:15 PM Box If the IACV is stuck open it'll cause problems... Jun 8, 2013 - 2:49 AM IfWeChoose Sorry I was a little drunk when I posted that lol... Jun 8, 2013 - 10:22 AM Box Like I said I'm willing to bet it's the MA... Jun 8, 2013 - 2:42 PM Kennyb8709 Thanks so much for the replies thusfar everybody,i... Jun 12, 2013 - 5:26 PM Kennyb8709 Bump and replacing the IAC tomorrow. Hope that sol... Jun 18, 2013 - 3:42 AM travisxcore Open up your dizzy, and check your pickup. It migh... Jun 18, 2013 - 10:47 AM Kennyb8709 Ill check it since its easy to get too but I did r... Jun 18, 2013 - 1:57 PM travisxcore Your pickup is behind the cap and rotor. It looks ... Jun 18, 2013 - 4:47 PM IfWeChoose Did you ever check your MAP? Do what Box said earl... Jun 18, 2013 - 6:43 PM Kennyb8709 checked MAP, MAp was good, replaced IAC and had a ... Jun 19, 2013 - 6:00 PM
IfWeChoose Sweet man! Distributor was the next thing I wa... Jun 19, 2013 - 6:02 PM |
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