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2.5 problem?

Printed From: West Coast Fieros
Category: Buy / Sell
Forum Name: Engines / Transmissions and Related Parts
Forum Description: Please use FS: (for sale) WTD: (wanted) in the title of each post
URL: http://www.westcoastfieros.com/forum/forum_posts.asp?TID=892
Printed Date: 14 May 2025 at 6:44am
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Topic: 2.5 problem?

Posted By: chevytruck88
Subject: 2.5 problem?
Date Posted: 27 September 2008 at 11:58am

84 2.5l auto....idling at 1500-2000 exhaust heats up glowing red hot.... exhaust is good no plugs timing is good.....gotting LOADS of fuel no intake leaks.....any ideas?

Replies:

Posted By: Capt Fiero
Date Posted: 27 September 2008 at 12:10pm

Bad IAC or MAP or both.

IAC = Idle Air Control Valve
MAP Manifold Absolute/Atmospheric Pressure

IF the IAC is bad it will cause it to idle high, and also cause the map sensor to lean out the fuel system. The Map sensor plays with timing and can cause the manifold to glow red.

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Capt Fiero
88 Fiero GT 5spd V6
Eight Fifty Seven GT V8 5spd.

Posted By: CFoss
Date Posted: 20 October 2008 at 12:13am

I have one of these engines sitting around.

Lemme know what you want off of it and I'll send them to you for the cost of shipping only. I'm on the island. You may have to wait a bit because I'm in and out of town.

Throttle body and map sensor maybe?

Lemme know.

250 701 3841.

Chay

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86 SE 3.4