I have an 04 dodge neon srt4 and i use to have a Diablo sport for the tune and i bought a base tune from someone in the states but i have a lot of issues with the tune, so I decide to use HPTuners and fix some of them... But i cant really find the way that the PCM works with the cruising and Idle afrs, i can say that in WOT afr & timming is where i want or at least i can adjust it as i want, but, in idle or if you touch a little the gas pedal (around 1000-1300 rpms or if you try to hold it in around 3k rpms) it just leans a lot (around 17s on the wideband) and trou me a fault code "random missfire" if you just skip that parts everything else works fine...
Can some one help try to fix this?
This is the set up on the car...
Kit big turbo agp (turbo,tmfold, h2housing), 3 bar map & tip, water meth AEM, walbro 255 fuel pump, Deatschwerks 750cc