phipark

Has anyone experienced any abnormalities with the Unichip in colder weather? I'm not sure if it's the winter gas or a high A/F ratio. The idle seems to dip under 500 RPMS and the car starts to shake as if it's going to stall. Also, the start-ups seem to be much rougher and longer than usual. The unichip is now out and the car idles fine and starts up right away. I first thought it was the battery, but now I'm not so sure. Anyone else experiencing this? Or maybe provide some insight?

evilone

mine seems to run better in the cold.. was yours dyno tuned??? and how cold are you talking about so far weve only had days in the low 40's

phipark

Mine was not dyno tuned. Not cold at all, only in the 50s. I'm thinking it might be the winter gas.

Loseit

iTrader: (1)

what is winter gas?

rondog

iTrader: (1)

try reseting your ECU, unplug the battery for a few hours and replug. then it will take a day or two to see the difference. it will have that shudder for the first half a day, but hopefully it will go back to normal. doesn't hurt to try.

darrinb

i was throwing codes the other day so i took it out, wasnt sure if they were tranny realted or not, imma out it back in tommorw

blader

I'm starting to feel like the car is running out of steam in the upper RPM's .. I fear that the extra oxygen in the winter gas and the denser, colder air is once again making the chip go lean.

phipark

this is what I was afraid of. I might be taken it out soon, even though, I get excellent gas mileage with it.

blader

yes, I just drove from NJ to south carolina and back. Recorded excellent gas mileage. 400+ a tank .. but that is only proof of the leaning .. more air less gas, better mileage

I'm not WORRIED, cause I know the ecu will retard timing and prevent any damage from the lean condition but still, I'm not getting all my power and I didnt pay 600$ for that. I thoguht at first that it was feeling slower because I took off my light summer wheels and switched to stock 17s and new all seasons but now I'm noticing how the engine sounds and feels at high rpm.