I CHANGED OUT INTAKE MANIFOLD GASKETS UPPER AND ...

1996 Chevrolet Cheyenne

Tiny

Anonymous

January, 7, 2013 AT 5:39 AM

I changed out intake manifold gaskets upper and lower
After putting it all back together it idled fine and accellerates fine but under steady load maintaining a steady speed it surges pretty bad. The trouble code I'm getting is 1345 engine po174 and po175. Stft b2s2 & b1s2 lean 99.2%

1 Answer

Tiny

ASEMaster6371

January, 7, 2013 AT 11:50 AM

You have a vacuum leak somewhere. Go over your work and check all lines

Roy

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