ajcavanah
Probationary Member
- 26
- 0
- Dec 15, 2013
-
madison,
Wisconsin
2G ran great but we wanted to make adjustments for new injectors (changed to 950cc) While adjusting global fuel to -53.1 and deadtime to 330 as outlined by the Injector Data Compilation table, we accidently reset the fuel trims. When we started the car back up it wouldn't idle. Contacted a tuner who made some adjustments and got it to idle but now the wideband is stuck on 22.4 and the stock front O2 sensor won't read. The exception is when we first start it the engine surges and the wideband and O2 read more accurately (14.7, .078). Then the revs drop and they both freeze at 22.4 and 0.00v. We've replaced the O2 sensor and double and triple checked the inputs to make sure they match the speed density bundle kit specs (www.ecmtuning.com/wiki/sdsetup). We've tried adjusting the global fuel setting up, the deadtime up and down. The adjustments get initial results on the wideband and O2 sensor but then they revert back to the bad readings once the rpms drop. We also changed the MAP setting to Intake but it ran incredibly rich so we went back to MDP. We have also been adjusting the BISS in an attempt to get the LrndIdlAdj to 144 and the ISC to the 30's. It doesn't seem to make a difference no matter how far we turn it out. Both of these setting read well when first starting then start to climb once the temp goes up. ISC gets as high as 120. When we adjust the global fuel the ISC drops to 1. A log from yesterday is attached. Any help would be great!
