failed emissions this morning.

**one92rs** · 03-19-2014

I can set the fans to come on when I want them. flexalite controller. I can set them cooler. when we were tuning I had the open element air cleaner. I have to put the stocker on it when I do emissions. I have drilled a bunch of holes in the bottom to try to get as much air as possible. what can I do to help it out.

**EagleMark** · 03-19-2014

Get a base without holes so it sucks cold air! and get the fans on earlier so it does not get this hot.

I just don't know what to do with tune to help pass, waiting for tips?

**Fast355** · 03-19-2014

Originally Posted by EagleMark

Get a base without holes so it sucks cold air! and get the fans on earlier so it does not get this hot.

I just don't know what to do with tune to help pass, waiting for tips?

I would start with the stock spark map and reduce the o2 target voltages 10%. Set stoich at 14.7. For cleaner emissions, leaner, later, hotter.

**RobertISaar** · 03-19-2014

i could be wrong...... but generally, hot engine = cleaner emissions(well, except for NOX).

**one92rs** · 03-19-2014

well is blocking off the pcv going to help? I can do that and see with another log. ill set the fans to come on at 198 or 195. even if they stay on that's ok. I have an offroad chip from hypertech here but it will throw a 32 egr code. I have a negative backpressure egr on it now. I can throw the other chip in and see what she does with it.

**EagleMark** · 03-19-2014

Looking at the log when it got hot at end, it was idling and BLM bottomed out at 108. Earlier in log they were 115 which is under O2 feedback. So something about hotter is cleaner is not working here.

I can mail you another chip with adjustments like Fast indicated? But I would get fans on earlier. Leave the PCV on...

**one92rs** · 03-19-2014

at this point ill take what I can get. fixin to go out and put in that hypertech chip I have. perty sure it is about stock. then I will log tht and post it. would the evap canister purging fuel tank pressure cause any of this? and was the egr working in the log yesterday or is that able to be seen. hell I might as well throw a 180 thermostat back in it I suppose since it seems to be working ass backwards.

**RobertISaar** · 03-19-2014

Originally Posted by EagleMark

Looking at the log when it got hot at end, it was idling and BLM bottomed out at 108. Earlier in log they were 115 which is under O2 feedback. So something about hotter is cleaner is not working here.

115->108 = 6.5% less fuel being used. if not cleaner, it's at least more efficient.