SlickZL1
Proven Member
- 34
- 1
- Dec 17, 2013
-
Ogden,
Utah
Hello,
My newly rebuilt 97 GSX has a problem that it gets rich after running more than 10-15min. AFR drops from 15 to 10.
I have read the other threads like this, but none of the suggestions have improved my issue.
New motor, no boost leaks, holds 20psi, new injectors and fuel system, fuel pressure set at 43.
Wideband is in the down pipe.
I have attached a cruise log from today, that shows what happens.
2 observations about the car:
it seems to create more gas tank pressure than before, so I left the gas cap off, but that didn't change it.
yesterday I had been driving it for about 15min and it was starting to have the rich issue, when I stopped and shut if off at the store, it was off for about 4min. When I got back in to drive it, it was completely back to a normal AFR of 15. I drove 10 more minutes home without issues.
Thanks for any suggestions you can give.
My newly rebuilt 97 GSX has a problem that it gets rich after running more than 10-15min. AFR drops from 15 to 10.
I have read the other threads like this, but none of the suggestions have improved my issue.
New motor, no boost leaks, holds 20psi, new injectors and fuel system, fuel pressure set at 43.
Wideband is in the down pipe.
I have attached a cruise log from today, that shows what happens.
2 observations about the car:
it seems to create more gas tank pressure than before, so I left the gas cap off, but that didn't change it.
yesterday I had been driving it for about 15min and it was starting to have the rich issue, when I stopped and shut if off at the store, it was off for about 4min. When I got back in to drive it, it was completely back to a normal AFR of 15. I drove 10 more minutes home without issues.
Thanks for any suggestions you can give.
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