finnigan001 Posted November 23, 2018 Share Posted November 23, 2018 Hi Guys, Just wondering if anyone had any ideas or has experienced the same issue as i have had. I've recently been trying to dial in a set of 60lb dekas. Been having great success. So i thought. Idle AFRs and WOT on point no lean tip-ins everything looked the goods. Then by chance we happened to turn the aircon off and noticed that the AFRs would slowly but gradually run all the way down to 10:1 then rich(off the scale.) when the car was idling in neutral or park and stopped. Turn the air con back on and then the AFRs sit perfect at 14.5-15. Also, putting the car in drive or reverse would bring the car back towards stoich. This is happening in closed loop and open loop. Things i've tired to remedy: -lean out the low slope. This did not help the idle with aircon off at all and made the car lean everywhere. Enriching the high slope to compensate at WOT helped but the car was still lean at idle in gear. -lower offsets, while this did help a little, bringing the AFRs up to 11, obviously affected the slopes across the rev range and would not come any where near 14.7 the lower i went. -adjusting the breakpoint higher and lower. Didnt seem to have any affect on the idle when stopped. My testing makes me believe there is an idle fuel adjuster some where or an A/C fuel adjustment and in gear adjustment as it seems to lean out/adjust when there is load on the motor. I feel like i'm missing part of the picture and going round in circles, chasing my tail. PS: am using the injector data post up here and on xr6turbo... tried both scalings for 3 and 4 bar. Cheers, Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.