I have a strange symptom: after I drive my car down the freeway for an hour or so then come to a stop the afr's go rich. I'm thinking this might be related to the position of my IAT sensor and the MAFT PRO reading air temp incorrectly. If the IAT sensor is affected by heat soak would that make the engine run rich?
IAT sensor and heat soak
- Thread starter teebone
- Start date
Hot air temps would lean the mixture for compensation of less dense air.
How rich does it go? What does VF show?
How rich does it go? What does VF show?
JJ, you need to come back to OSU territory!!!
AEM wide band shows AFR's running into the 11.5 range. (was 14.7 -15.2)
AEM wide band shows AFR's running into the 11.5 range. (was 14.7 -15.2)
Ac on? The timing increase at idle makes it a bit difficult to tune that exact region(well, tuning vf's that is). Although 11.5's afr is quite extreme from what I've seen. How about a break down of your settings and setup? Fp? Map reading at key on, engine off?