Ulev f23a4 ecu question

[Geewiz]

^+1
I once swapped out an ECU of the same type for my auto right in the parking lot of a locksmith thinking it had to do with some problem (didn't after all) and they had one of the reprogram computers from SnapOn and were like, "How the hell did you get here?" and then told them I swapped in their lot.

But good to know I can limp to the same place with my auto ULEV ECU when I do a 5spd swap in coming weeks and then pop in the ULEV 5spd ECU once there.

One other thing I would add is have all your spares there at once because you can't program one key and then come back and have another key programmed because every time they reprogram, the key code programmed to the ECU and the chip in the key is different. Or it may be the keys' codes are unique and the ECU clears memory of previous one(s) when reprogrammed. I just know the computer they use they have to specify how many keys are being activated right then and there.

 

[filslife]

I have a f23a4 in my car with a f23a1 ecu in my car, my car hesistates a lil when i let go the gas is that a symptom of having to change the ECU??? I Need help

 

[Snoobly]

That doesn't sound like a symptom of the ECU. My car does that a little too. When you let off the gas and it drops down to like 200 rpms and then jumps back up to idle at round 700. And by swap, you only swapped in the ULEV engine? what tranny? specifics.

 

[Geewiz]

That doesn't sound like a symptom of the ECU. My car does that a little too. When you let off the gas and it drops down to like 200 rpms and then jumps back up to idle at round 700. And by swap, you only swapped in the ULEV engine? what tranny? specifics.

His info plus are you using the wideband ULEV primary oxygen sensor with the non-ULEV F23A1 ECU?

 

[AFAccord]

They don't even 'need' the ECU, unless you don't have the VIN from the car it came from. A Service Center can technically take an existing key, copy it, then program it using the VIN from the ECU alone. You probably don't have the VIN for your ECU, so obviously they will need the ECU itself. The keys are programmed to the ECU, not the other way around. This is the best case scenario. They're still likely to be skeptical and ignorant as to why you want this done, but the cases stated above are about as simple and forthcoming as it gets.

 

[Macsrule15]

i dont know if this is figured out yet but i think by me here in the IE there is a mobile locksmith that can program RFID keys if you have a vin! i will see if i can find his number... if not give a few a call and see if they can do it! they come to you!!

GL!