Deepdarkspirit
Member
Hi,
I've just been given a Signum 2.2, engine z22yh, off my father. I was aware of the issues, I have access to a Bosch KTS diagnostics tool.
A brief bit of history of when the problems began, the car was having minor issues with power and the eml light was on, my father decided to take the car to a garage, who advised him the MAF was blown, and he didn't want to just put a new MAF on in fear that the same would happen with the new one.
then upon further "investigation" there was problems with the ecu and the car would need to be sent to a specialist to bridge tracks?
The car came back running fine, a few weeks later the real issues began, when the car is cold it seems to run okay once warmed up the irratic idle begins sometimes dying, the car really hesitates and has very little power, fuel consumption has dropped to about 17mpg, the garage then advised the car would need a new ecu.
I've cleared the codes and the ones that seem to keep coming back is p0110 and p0100, I monitored the voltage and air flow whilst increasing rpm 0.6v then steadily increases in relation to rpm, air flow is at about 12 and increases in relation.
O2 seniors report weird value bank 1 sensor 1 sits at 600mv then increases to 1600+Mv as increasing rpm bank 1 sensor 2 sticks for a while whilst cold at 431mv then it did increase to 600mv and then dropped to 79mv then 0 and stayed very low. I noted in the engine bay there is electrical tape across 2 wires in the harness so I'm not sure what the issue is. Also the fuel mixture shows rich flicking to lean briefly.
Any ideas I don't really wish to drive it like this
I've just been given a Signum 2.2, engine z22yh, off my father. I was aware of the issues, I have access to a Bosch KTS diagnostics tool.
A brief bit of history of when the problems began, the car was having minor issues with power and the eml light was on, my father decided to take the car to a garage, who advised him the MAF was blown, and he didn't want to just put a new MAF on in fear that the same would happen with the new one.
then upon further "investigation" there was problems with the ecu and the car would need to be sent to a specialist to bridge tracks?
The car came back running fine, a few weeks later the real issues began, when the car is cold it seems to run okay once warmed up the irratic idle begins sometimes dying, the car really hesitates and has very little power, fuel consumption has dropped to about 17mpg, the garage then advised the car would need a new ecu.
I've cleared the codes and the ones that seem to keep coming back is p0110 and p0100, I monitored the voltage and air flow whilst increasing rpm 0.6v then steadily increases in relation to rpm, air flow is at about 12 and increases in relation.
O2 seniors report weird value bank 1 sensor 1 sits at 600mv then increases to 1600+Mv as increasing rpm bank 1 sensor 2 sticks for a while whilst cold at 431mv then it did increase to 600mv and then dropped to 79mv then 0 and stayed very low. I noted in the engine bay there is electrical tape across 2 wires in the harness so I'm not sure what the issue is. Also the fuel mixture shows rich flicking to lean briefly.
Any ideas I don't really wish to drive it like this