Say your edit above. I was doing a little research and came up with this: The ECM is designed to run a rich mixture during a cold start. If the rich running goes away after a few minutes that might be normal. Could it be that someone punched out the cats as a "performance" modification...
The fuel pressure regulator is in the tbi body. Pretty easy to change just remove the screws from the top and replace the spring, diaphragm and gaskets. I circled the screws in the picture. There are 4 more On the bottom side for the diaphragm and spring that you can get after removing the...
Nice rig. For getting it running nice, I would change out the fuel pressure regulator in the TBI. The spring inside rusts away leaving you with a rich mixture.
My Suburban didn't have a headliner when I bought it. We purposely built the headliner to be able to collect patches from our travels. So... I have 60 square feet of morale patch display area... LOL
Hello everyone,
Just starting out in this adventure. We live in the southwestern corner of New Hampshire. Our rig is a 1990 Chevy Suburban that we are slowly working to refresh and outfit. It was sitting in a field in North Carolina for several years before we bought it and drove it home...
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