Has anybody noticed loss of AC w/ chipped ECU?

 

Was it chipped for your specific mods?

 

No. For example, a PYR chip gives me no AC while a Mugen chip does. What's really strange is...one Skunk2 chip (w/ same specs) gives me AC while another Skunk2 chip doesn't.

 

That's what happens when you buy chips, you don't know what you're getting.

some of those chips are making use of the ecu feature called A/c cutout, there is actually an independant wire that runs to the ecu to control specifically this feature.

A REAL race car doesn't have A/C. Just like a REAL racecar isn't an automatic, so most of the chips disable the code that looks for the Auto tranny lockup solenoid, same principle.

...I'm not flaming, just shedding some light on the A/C thing...

Edit: Removed advertisement

-PHiZ

 

hell some chips will even turn off your a/c at a certain rpm...or so i heard.

 

some cars turn off AC at WOT

 

Maybe you should try a tunable ECU. As others have said, some chips will disable A/C when you plug it in, or even while you drive. I have the Apex'i power fc on my car, which lets you tune a wide variety of settings, and my A/C is fine at all rpms and speeds.

You mentioned 2 same Skunk2 chips operate differently on your car. This is kind of weird...are they like that as soon as you plug them in? or after a while, when the ECU adjusts to your car's settings?

 

Haven't gone on in awhile. No, they're like that as soon as they're plugged in.

 

Just for the record -- there is no such thing as a Mugen "chip". Mugen only produces a full replacement ECU, which you can still run the A/C with with a slight modification (it's a matter of jumping a wire in the ECU harness).