Lean idle

[Chemwarrior]

I'm having issues with my idle being too lean. I've noticed that my AFRs will rise up to 18-19 while my car is idling at a stand still. This has been happening for about a week now. I haven't added anything new to my car. I do have an ETS intake pipe though but had Sharif tune for that. Any inputs?

[Evolvedgti]

I would think you may have a boost leak. if it is just sitting there, the a/f ratio is different compared to when you got tuned. It probably used to see a certain amount, and now its out of wack. We did just went thru temp changes so maybe your connections loosened.

[Psych]

+1 on boost leak

[Chemwarrior]

I'll check for boost leaks but I still peak at 24 psi. Thanks for the input guys.

[Evolvedgti]

just because you still peak 24, does not mean you dont have a leak. it just means that your turbo is having to work harder, having higher EGT's to get there. Where is your idle sat? My car has the cossie M2's, and kept dying so Chris(mellon) had to up my idle to 1050-1100 to keep it started. sometimes my car will jump to 16.9 at idle, which is lean alittle, but i hear that cams make you idle between 15 & 16 due to pulling in more air!