Ram Air IV

Since I swaped an LQ9 in my -68 Firebird I have mounted headers and deleted the cats, now I get some DTC's from the PCM.

P0135-HO2S Heater performance Bank 1 sensor 1 (Old)(Immature)

P0140-Circuit insufficent activity bank 1 sensor 2 (Old)(history)(current)(Immature)

P0155-HO2S Heater performance Bank 2 sensor 1 (Old)(Immature)

P0160-Circuit insufficent activity bank 2 sensor 2 (Old)(history)(current)(Immature)

Also, the "Once per trip test" in HPtuners show :

Catalyst: Incomplete
Evaporative system: Incomplete
Oxygen sensor: Incomplete
Oxygen sensor heater. Incomplete

Anyone know what I should do ?
Magnus

sreve

iTrader: (3)

did you solder the O2 wires to make them long enough? another poss. they rubbed or they burnt thru. just throwing stuff out there.
B.T.W. badazz car!!!!

Randy WS6

iTrader: (69)

On the rear o2's , delete them or install o2 simulators

Ram Air IV

Yes, I have solder the wires. I added some 10 inch to the O2-cables. Is this a reason for the error ? Thanks / M

SSAUTOCHROME

iTrader: (2)

Yup. Delete - that the answer for the rear o2's. Disable the DTC codes for these (2) rear sensors. The fronts? Probably a break in your installation. If replacing with new do yourself a favor and buy Bosch 13111's (Corvette o2's) which are already long enough for long tubes.