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Reply With QuoteAre you using OEM O2 sensors or aftermarket?
O2 Sensor weird Problem :S
hi people, i have a little problem whit the o2 sensor, the fact is:
i put 3 diferents o2 sensor in the G, and no one work :S
when desconect it, the car runs good (spend a lot of gas, but runs fine) when conect the o2 (anyone of 3) the car misfire when accelerate.
i think it a little imposible that the 3 sensors make the same fail :S
what can be? anyone?
thanks!
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-Mitsubishi Galant (4G64 SOHC) ES 1996, 5spd Swapped.
-Mitsubishi Galant LS 1994 a/t [ SOLD ]
Are you using OEM O2 sensors or aftermarket?
- Chris -2006 Mitsubishi Eclipse GS 5MT: My DD
2001 Mitsubishi Eclipse GS 5MT
________________________________________________
DRL Delete | 6K HIDS | AUX Cord Wired in RF Head Unit | DC Sprots CAI | OBX Longtube Header | Aero Turbine 2540i Muffler
1 is oem, the other one is bosch, the other one i dont know, i think it is aftermarket to!
__________________
-Mitsubishi Galant (4G64 SOHC) ES 1996, 5spd Swapped.
-Mitsubishi Galant LS 1994 a/t [ SOLD ]
How long did the OEM sensor last? Did you check the connector?
- Chris -2006 Mitsubishi Eclipse GS 5MT: My DD
2001 Mitsubishi Eclipse GS 5MT
________________________________________________
DRL Delete | 6K HIDS | AUX Cord Wired in RF Head Unit | DC Sprots CAI | OBX Longtube Header | Aero Turbine 2540i Muffler
i think the conector is ok, but, can be the car conector?
__________________
-Mitsubishi Galant (4G64 SOHC) ES 1996, 5spd Swapped.
-Mitsubishi Galant LS 1994 a/t [ SOLD ]
another think can be?
__________________
-Mitsubishi Galant (4G64 SOHC) ES 1996, 5spd Swapped.
-Mitsubishi Galant LS 1994 a/t [ SOLD ]
did you reset the ECU?
i dont know how to do that!
__________________
-Mitsubishi Galant (4G64 SOHC) ES 1996, 5spd Swapped.
-Mitsubishi Galant LS 1994 a/t [ SOLD ]
Disconnect the battery for 10mins
- Chris -2006 Mitsubishi Eclipse GS 5MT: My DD
2001 Mitsubishi Eclipse GS 5MT
________________________________________________
DRL Delete | 6K HIDS | AUX Cord Wired in RF Head Unit | DC Sprots CAI | OBX Longtube Header | Aero Turbine 2540i Muffler
whit the sensor conected?
__________________
-Mitsubishi Galant (4G64 SOHC) ES 1996, 5spd Swapped.
-Mitsubishi Galant LS 1994 a/t [ SOLD ]
ECU reseted, the same problem!!!!
__________________
-Mitsubishi Galant (4G64 SOHC) ES 1996, 5spd Swapped.
-Mitsubishi Galant LS 1994 a/t [ SOLD ]
is the check engine light on?
if the problem only happens when the sensors are installed, you could be shorting to ground somewhere in the wiring and the sensor is closing the loop from power/reference signal from the pcm to wherever the short is leading to your problem. like mko says, if there is a check engine light on, look at the actual wiring for the problem shown, not just the component that it mentions (o2 sensor) and you may find your problem that way
yes , the check are on! i need to check the wires?.
__________________
-Mitsubishi Galant (4G64 SOHC) ES 1996, 5spd Swapped.
-Mitsubishi Galant LS 1994 a/t [ SOLD ]
no, check what the code is. stop going for random things
well, if i conect the O2 and reset the ecu, the check dont turn on, when disconect it is when the check turn on,
__________________
-Mitsubishi Galant (4G64 SOHC) ES 1996, 5spd Swapped.
-Mitsubishi Galant LS 1994 a/t [ SOLD ]
the ecu has relearning procedures. you reset it again and let it idle for 30min to an hour.
u say, reset it again, conect the sensor and let the car runing for an hour?
__________________
-Mitsubishi Galant (4G64 SOHC) ES 1996, 5spd Swapped.
-Mitsubishi Galant LS 1994 a/t [ SOLD ]
reset it with the sensor hooked up
yes. mko is right, if there are check engine codes, work with those first. but if you are only getting codes with the sensor unplugged then obviously there's your code. do the procedure that mko is telling you to relearn idle/tps position and your problem should clear up. it may also take a bit of driving after the hour or so of idling to completely go away though.
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