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1998 mustang cobra running lean

This is a discussion on 1998 mustang cobra running lean within the SVT Tech forums, part of the SVT category; I have a 1998 cobra when i bought it the check engine light would come on for a while and ...

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Old 09-26-09, 06:48 PM
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1998 mustang cobra running lean

I have a 1998 cobra when i bought it the check engine light would come on for a while and it would idle high like 1500rpm it would take a long time to go back to normal idle then the check engine light would turn off its been six months since now the check engine light stays on and i have the same idle problem when i drive the car aggressively only i had the codes read it says its running lean in bank one and two i had a technician diagnose it and he said it was a leak in the rear of the lower intake manifold. so is that possible? is there any aftermarket lower intake manifolds? any help would be appreciated.
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Old 09-27-09, 12:08 AM
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I would just get them to throw some new intake gaskets on it and be done with it, I haven't ever seen any after market intake manifolds for the 96-98 cobras.
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Old 09-27-09, 09:58 AM
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Quote:
Originally Posted by pvtdiaz View Post
I have a 1998 cobra when i bought it the check engine light would come on for a while and it would idle high like 1500rpm it would take a long time to go back to normal idle then the check engine light would turn off its been six months since now the check engine light stays on and i have the same idle problem when i drive the car aggressively only i had the codes read it says its running lean in bank one and two i had a technician diagnose it and he said it was a leak in the rear of the lower intake manifold. so is that possible? is there any aftermarket lower intake manifolds? any help would be appreciated.
hey make sure its a intake gasket leak.i had lean on bank 2 thought it was intake gaskets but after alot of messing around i found my diverter line leaking right off the exhaust manafold.i think they make an intake if you look hard enough .very expensive im sure if so like everything for these cars lol.
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Old 09-27-09, 03:47 PM
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thanks for all the help i will check and change the gaskets
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Old 10-02-09, 03:53 PM
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new info

i took it to the dealer and they checked it they told me its going to need new gaskets and the imrc plates so should i delete them, replace them and if so does anyone know of a good mechanic in los angeles
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