94 Z28 Runs Rich 8mpg
#46
Re: 94 Z28 Runs Rich 8mpg
Im sorry, the air pump Im not sure what its called exactly I think it is connected by a 4 wire plug I believe and I unplugged it because I haven't taken it out yet but the fuse is still in if that matters.
#48
Re: 94 Z28 Runs Rich 8mpg
OK update I removed the air pump completely no longer any parts for it. Now for the running rich problem is still there but really I did not buy my car for MPG I knew that. I also got a great deal on some Off road headers and a y-pipe along with a dump/cutout so took the manifolds out very terrible gaskets very bad replaced with new ones that came with the headers. Also had to get the block off plate for the EGR. New 02 sensors extended plugs no tune but I my self changed the PCM so make my fans come on at about 200 F instead of the factory which is like 225 for lo? Via Tuner Cats I figured it was a good idea to do so because the headers make it really hot in the engine bay but now she runs nice and cool but not to cool. Anyways all installed now she did not have a problem starting up at all she sounds great, really mean, real nasty. I've had them on for a month my MPG did increase from about 8 to 10 so it still is running rich but really I'm not worried about buying gas I just want to make sure she is running ok and looks good doesn't look like she will have a failure at some point so here is a log file I reset the BLMS about 15 seconds in to see how it adjusted on the short trip. I also had a huge KR spike which is concerning I'm not sure please look thanks.
Last edited by Jeff1904; 04-15-2016 at 12:45 PM.
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