Joined
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22 Posts
Fixed it. Courtesy of the mechanics from the US and Canada who post youtube videos showing how to properly diagnose car issues (those guys are real professional repair technicians who actually investigate the issue compared to the mechanics in romania who expect the customer to tell them what to change or play the guessing game on his or her money) and the workshop manual which taught me how to handle and change the sensor without breaking it.
Sure enough the oxygen sensor was the culprit, it was a delphi one installed by the service where I've changed the cat. The delphi sensor apparently had a issue with temperature or somethin' as it was misbehavin' when the engine and the cat were hot.
Apparently on these cars, on torque lite app, when the sensor is stuck on 0.4V and has no activity that means there is no signal whatsoever (tested it with ignition on but engine off with the oxygen sensor unplugged).
Bought a original sensor from a junkyard (for 40 euros, a new one was 300 euros) installed it myself, car runs fine, no more P0130 no more hesitations.
What was happening when I was pressing the pedal to the medal and ran fine? simple, that triggered it to run insanely rich (seen it on the downstream oxygen sensor, as it read almost a constant 0.8-0.9V while the pedal was pressed to the absolute floor) but the upstream was still...dead...
Tips and tricks: never ever in any car install a aftermarket oxygen sensor you're guranteed to have problems, in case of problems, grab the sensor and look at what is written on it and buy the exact same one, either brand new either one from a junkyard like I did, don't check the year displacement etc of the donor car, check the part number brand and type, mine has the following written on it (note that yours might be different):
GM 55 566 650
NTK type OZA 619
Continental 5WY2D01A
I've asked the guy at the junkyard for one with the same exact writing and he found it in a 2012 compact cruze 1.6 124HP and mine is a 2010 sedan 1.6 113HP but the part number manufacturer etc was a match, I've installed it and the car runs fine now.
Sure enough the oxygen sensor was the culprit, it was a delphi one installed by the service where I've changed the cat. The delphi sensor apparently had a issue with temperature or somethin' as it was misbehavin' when the engine and the cat were hot.
Apparently on these cars, on torque lite app, when the sensor is stuck on 0.4V and has no activity that means there is no signal whatsoever (tested it with ignition on but engine off with the oxygen sensor unplugged).
Bought a original sensor from a junkyard (for 40 euros, a new one was 300 euros) installed it myself, car runs fine, no more P0130 no more hesitations.
What was happening when I was pressing the pedal to the medal and ran fine? simple, that triggered it to run insanely rich (seen it on the downstream oxygen sensor, as it read almost a constant 0.8-0.9V while the pedal was pressed to the absolute floor) but the upstream was still...dead...
Tips and tricks: never ever in any car install a aftermarket oxygen sensor you're guranteed to have problems, in case of problems, grab the sensor and look at what is written on it and buy the exact same one, either brand new either one from a junkyard like I did, don't check the year displacement etc of the donor car, check the part number brand and type, mine has the following written on it (note that yours might be different):
GM 55 566 650
NTK type OZA 619
Continental 5WY2D01A
I've asked the guy at the junkyard for one with the same exact writing and he found it in a 2012 compact cruze 1.6 124HP and mine is a 2010 sedan 1.6 113HP but the part number manufacturer etc was a match, I've installed it and the car runs fine now.
