1995 Saturn SW1 4 cyl Front Wheel Drive Automatic
I have a 95 SW1, 102,000miles. It runs on one or two cylinders at start up, then eventually will run fine after coming to operating temp. . I have replaced the engine coolant sensor with a brass tipped one. I suspect an poor engine swap with an different year engine. The only number i could find anywhere on the engine block is B004. I think this because there is a hole on the air filter box lined with a rubber seal (toward the inside not the fender side) that looks like it should have something in it. But it's empty. Perhaps a MAP sensor should go there. There is a four pin wiring connector that connects to a part with the numbers 4L21 and 16160359 on it. Two bolt holes , black plastic and the other side is metal. I think it may be part of a MAP sensor but not sure. That hangs from the wiring harness kind of near that hole in the air filter box and isn't connected to anything. I need to know what that unattached part is and what if anything goes into that hole in the air filter box.
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Wednesday, October 20th, 2010 AT 9:27 PM