Hondata

Okay my problem is that during the day my car runs completly fine. But during the night my wideband shows 10.0 at wot. During the day runs fine at 11.5 wot what can I change to run about the same during the night and day. Another thing is that when my car idles in open loop fine. when in closed loop it has popping noises through the exhaust only after 20 or more mins of driving at start up idles fine. Oh yeah I live in hawaii during the day is humid

Intake Air Temp Comp should fix your problem. At night, have the engine completely warmed up and click the recording button and view your sensors. When the AFR is reading too rich at WOT, check the Intake air temp and decrease the fuel trim for that specific temp. Somebody else is gonna have to answer your question regarding your issue on closed loop.

deafy wrote:Intake Air Temp Comp should fix your problem. At night, have the engine completely warmed up and click the recording button and view your sensors. When the AFR is reading too rich at WOT, check the Intake air temp and decrease the fuel trim for that specific temp. Somebody else is gonna have to answer your question regarding your issue on closed loop.

thanks I will try that tonight and see what happens [/i]

mraloha wrote:

deafy wrote:Intake Air Temp Comp should fix your problem. At night, have the engine completely warmed up and click the recording button and view your sensors. When the AFR is reading too rich at WOT, check the Intake air temp and decrease the fuel trim for that specific temp. Somebody else is gonna have to answer your question regarding your issue on closed loop.

thanks I will try that tonight and see what happens [/i]

which one do I change low med or high iat load

low is idle, medium is partial throttle, high is WOT. Adjust the fuel trim percentage for the column closest to, but still less than, the IAT readings.