On my way to work this morning my car started to running very lean (17:1 - 18:1) when I would come to a stop. The car was tuned 2 weeks ago. We didn't get to do alot of street tuning after the car was on the dyno, but the car had never run lean like that before. What are some things that could cause this to happen. The weather today is muggy and raining but I cant see the weather causing a big change like this. Anyone have any thoughts as to what the problem maybe?

Here is my setup:

JDM B16a (stock)
ACT Heavey Duty Pressure Plate
ACT Organic Street Disc
Full-Race ProStreet Manifold
Full-Race 3" down pipe
Thermal R&D 3" Exhaust
3" Kteller test pipe
Garrett T3/T4 60 Trim
Precision 350 Intercooler
Tial 44mm Wastegate
Tial 50 mm BOV
3bar MAP Sensor
GE Vacuum Manifold
Walbro 255 fuel pump
RC 750 injectors
Endyn Oil Sandwich Plate
AEM Wideband
AEM Boost Gauge
AEM Oil Pressure Gauge
P06 chipped to P28 w/ Crome

 

my engine does this too when its muggy out. but its not just at idle. I don't have a air/fuel gauge on my car but it takes me like 8 seconds to go through 1st gear and longer for all the other gears when its hot and muggy out. i have a d15b7 w/ i/h/e. In for more help

 

I've had my tune do some wierd stuff. I actually had to have my local tuner play with the fuel for idle and out of boost cruising. You probably need to have someone look at the tune again. What ems? Hondata?

 

The car is tuned with Crome. Driving home after work, and then driving today, the car has been driving normal. Im not sure what was causing it to do that. Im going to be getting tuned again later this summer after I add a couple things to my setup, so we'll get some more street tuning in then.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Cypher0117 &raquo;</TD></TR><TR><TD CLASS="quote">my engine does this too when its muggy out. but its not just at idle. I don't have a air/fuel gauge on my car but it takes me like 8 seconds to go through 1st gear and longer for all the other gears when its hot and muggy out. i have a d15b7 w/ i/h/e. In for more help </TD></TR></TABLE>


Bahahahaha, the temperature has nothing to do with it taking 8 seconds to go through 1st, and everything to do with the fact you have a d15b7.

Your trying to compare a highly modified turbo b16a to your stock d15...give your head a shake champ!