I got a code P0089 fuel pressure regulator "A" Performance, assuming this is from worn scv so I replaced with an oem quality aftermarket scv and reinstalled, cleared code and keeps coming back, goes into limp mode and won't rev past 2000rpm, can't get into mechanic for a relearn for few days, if this is the typical fix for it?
I've read that a OBD2 ELM <v2.1 with torque app can do a relearn and only cost about $10 is this true as this would be much cheaper than going to a mechanic. If a mechanic can even do it as my closest dealer is 50km away
Is this also fine to drive on if I do need to take to a mechanic, for the relearn it needs to be at operating temperature so assume it will need a bit of a warm up before even performing a relearn.
Is a relearn all that's nessasry? Or can another issue cause this?