Idle problem

[zx6-guy29]

Scratching my head on this one. The other day I got a CEL, and the codes were bank 1 lean and bank 2 lean. Idle is running at about 1,500 rpms too, even after coming to a complete stop. I reset the CEL, and it hasn't come back on (been at least 6 or 7 cycles since reset) but the idle problem is still there. '96 sport 4.0 OHV 5 speed. MAF? IAC valve?

 

[Ranger379]

what is the code from the CEL?

 

[floydr007]

bank 1 &2 lean is p0171 and p0174. theres a few things that could be going wrong. those codes usually refer to a vacuum leak. have you had the 00m12 recall done with the upper and lower intake manifold gaskets? i had those same 2 codes and a very sporradic idle and that solved the problem. do some 00m12 searches on here to learn more about it if you havent had it done. good luck.

 

[zx6-guy29]

Just replaced the intake manifold gaskets 2 months ago due to the infamous coolant leak, but I had my mechanic do it, to the tune of €200.00. I live in Germany, and I don't know if the Ford dealer over here would honor a recall on a U.S. spec Explorer. Even if they did, they might not because it was already messed with. Anything else it might be?