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car sticks rich

865 views 0 replies 1 participant last post by  gone2000 
#1 ·
87 with mass air conversion. A9l com. Kenne bell 1.5 pushing 8 psi. Holley aluminum heads. Meth injection.
Car just got dyno tuned w sct chip. Used pro m 80 mm. I have a narrow band installed.
I drove the car to work today and after driving car for 10-15 min the car will just start running rich. Shut the car off and it start it back up and it runs fine for another 10 min.
On the way home it swung lean. So lean the gauge wouldnt ever read it. Even under throttle with the meth going in it was lean.
Turning the car off and back on did not fix it on the way home.
I did break the mass air flow senson plug and found a wire inside that i soldered back together. Checking it with the multimeter it sweeps voltage with acelleration.
Any ideas??? Im lost.
 
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