the odd running can be also
iSC speed control jammed, gummed up
EGR jammed open same reasons but will have no power near idle.
does engine have full power once it hits 180F coolant?
2500 hot? rpm, ISC dead, or ECU in limphome, mode. with full power????
98 ECU is very different, and only works with 98 injectors,for sure.
no scans and dead comm port is not good; others have complained about lack of comms for years, on SPORTS only, and was found there tools did not do all OBD2 com ports as all new tools do.
pin 2 and 10
some tools do only pin 7. comm levels.
a good tool does all 4 ways. (4th is CAN bus , last added)
seen many car with DLC pin 16 wire cut (power) for the owner DIY some accessories, (vast) for stealing power, to worst of all autostarts. or added cruise or added stereo AMPs etc. (hacks)
make sure the DLC hardness wires look ok. at dash lower edge.
yes do hope you hack is TCM neutral safety switch bypass and not worse.
iSC speed control jammed, gummed up
EGR jammed open same reasons but will have no power near idle.
does engine have full power once it hits 180F coolant?
2500 hot? rpm, ISC dead, or ECU in limphome, mode. with full power????
98 ECU is very different, and only works with 98 injectors,for sure.
no scans and dead comm port is not good; others have complained about lack of comms for years, on SPORTS only, and was found there tools did not do all OBD2 com ports as all new tools do.
pin 2 and 10
some tools do only pin 7. comm levels.
a good tool does all 4 ways. (4th is CAN bus , last added)
seen many car with DLC pin 16 wire cut (power) for the owner DIY some accessories, (vast) for stealing power, to worst of all autostarts. or added cruise or added stereo AMPs etc. (hacks)
make sure the DLC hardness wires look ok. at dash lower edge.
yes do hope you hack is TCM neutral safety switch bypass and not worse.
http://www.fixkick.com