Black Smoke after Intercooler Install - Help! (3 Viewers)

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Feb 11, 2023
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New Jersey
Hey gang -
Yesterday installed a front mount air to air Garrett intercooler on the 1996 KZJ78. Routed the pipes through the old horn spaces and through the back. Bought a throttle adapter for the connection to the air manifold on the passenger side and it came out really clean. Pic attached.

Everything is hooked up and clamps are tight. I start her up and she has a really rough idle and black smoke coming out of the tailpipe. This never happened since i’ve owned her. I went back and tightnes clamps, and ran soapy water over pipes to detect if any leaks. Couldnt find any.

I am hoping it is something simple. The only thing i can think of is the intercooler is a bit more than i need, but an oversized airflow wouldnt do it, would it?

Has anyone run into this problem? Or know enough to advise what this might be or what I should do next?

Thanks guys



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