ActiveAero
08-12-2003, 12:59 AM
Ah the joys of owning a car. :roll: I put the R on the dyno today for some tuning. Thankfully I didn't wait and went today, because my car was running EXTREMELY lean. My AF ratio at 6,000rpms spiked off the chart PAST 18:1!!!!!! :shock: :shock: by the way it was traveling off the chart it most likely got close to the 20:1 AF range. However as it approached redline it calmed back down. Thankfully my dyno guy didn't inform me of this during my baseline runs :evil: :? .
I started off by dumping fuel with the FPR. That worked a bit, then I checked my timing and saw that it was low (13 degrees). Even though raising it seemed like the worst thing to do at this point I figured something was up and put it back to spec. This cause my car to richen out and actually get back on the scale, but it was still lean. I then proceeded to dump more fuel. I'd rather push my injectors hard for the trip home than to run super lean. By the end of the day I was running 64psi of fuel (about 14psi more than stock) and had the VAFC adding alot as well.
After getting the car within somewhat resonable limits it started dying as I tipped into the throttle or after any full throttle runs. I figured it didn't know what to do with all the fuel and I figured something was up.
I drove it home with it only going dead a few times :P when I stopped. Pulled in to the driveway and decided to check my codes.
Nothing major showed up, oh except for the little MAP sensor not functioning/defective code. Blah like thats important. :wink: So basically I fried my MAP sensor when I accidently plugged it in the TPS sensor when I first got the car running and it crapped out. The funny thing is I was still able to pull a best of 182whp without it working :? . I actually figure it was still functioning somewhat just not very well, without it the car wouldn't be driveable (it sure as heck wasn't when it was plugged in the wrong spot).
Looks like I can pick one up for pretty cheap which is a relief.
I started off by dumping fuel with the FPR. That worked a bit, then I checked my timing and saw that it was low (13 degrees). Even though raising it seemed like the worst thing to do at this point I figured something was up and put it back to spec. This cause my car to richen out and actually get back on the scale, but it was still lean. I then proceeded to dump more fuel. I'd rather push my injectors hard for the trip home than to run super lean. By the end of the day I was running 64psi of fuel (about 14psi more than stock) and had the VAFC adding alot as well.
After getting the car within somewhat resonable limits it started dying as I tipped into the throttle or after any full throttle runs. I figured it didn't know what to do with all the fuel and I figured something was up.
I drove it home with it only going dead a few times :P when I stopped. Pulled in to the driveway and decided to check my codes.
Nothing major showed up, oh except for the little MAP sensor not functioning/defective code. Blah like thats important. :wink: So basically I fried my MAP sensor when I accidently plugged it in the TPS sensor when I first got the car running and it crapped out. The funny thing is I was still able to pull a best of 182whp without it working :? . I actually figure it was still functioning somewhat just not very well, without it the car wouldn't be driveable (it sure as heck wasn't when it was plugged in the wrong spot).
Looks like I can pick one up for pretty cheap which is a relief.