I've seen a whole bunch of these "pinging" topics come up with the cold weather, and I just ordered a chip with a cold and warm weather program. But after doing this, the engineer in me says that the ECU has all the inputs it needs to compensate. So why does it ping?

I'll throw this idea out and maybe the tuners can shoot it down, or maybe it saves us a bunch of headaches. The tuners are definately increasing the timing. The ECU is going to add more timing as the temperature gets colder. Is it possible that with all of the timing the tuners have added that the ECU cold temp compensation goes too far?

If that's the case, then can a chip tuner decrease the amount of timing that the ECU can add over base timing when the temps get cold? This would eliminate the need for cold weather and warm weather programs and make everything a little safer.

 

I think the pinging comes from a combination of things: colder temps(the ECU adds timing), extra boost(pulley), gas(lower octane?), etc. We're in the 40sF in the AM on the way to work and I don't have any pinging. You need your tuner to keep you safe.

Dan

 

I don't have any trouble (since I haven't recieved my parts yet). The chip should already be tuned for the pulley and other parts. Assuming similar gas, the only change is the temperature, and the ECU (if tuned properly) should compensate for that. It doesn't seem like there needs to be a cold weather and warm weather program.

 

Its about 40 degrees here in ohio every morning and i hit wot getting on to the highway and havnt heard a thing yet

 

Give some of the tuners a call and ask. I'm sure you'd get an answer quicker that way.

Oh I do now that winter gas in NJ sucks.