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95 Suburban 5.7L cold start rough code 43 gas odor

11-21-2008, 11:56 PM
My 95 Suburban runs rough when cold started and there is a strong gas odor. There is a trouble code of 43. The colder it gets, the worse the problem is. My shop is stumped. Any ideas. Thanks.

11-22-2008, 02:04 AM
The code 43 concerns the knock sensor, web site: ( The strong gas odor ? Is the engine a TBI ? Had a 1/2 ton with a throttle body and one of the injectors was leaking.

11-22-2008, 02:14 PM
Yes, It's a throttle body injector system. Thanks for the idea.

11-23-2008, 02:07 AM
Any solution snakeis ?

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