Fixed P1647, now got P0174
#1
Fixed P1647, now got P0174
I recently fixed my upstream lambda sensor which was reporting a P1647 fault (described in a separate thread), cleared the fault code, and was happily diriving for the first time without an engine warning light, when a few miles later up popped the message "Performance restricted", and another engine warning light, with a DTC of P0174 (System too lean, bank 2)
Researching this I know there are many possible causes, but the most obvious to me is that the lambda sensor that I replaced the Denso one with is not giving the right signal. The one I bought was from ebay here. When it turned up it looked exactly like the Denso one I had taken off, and had a heater resistance of 2.5 Ohms which seemed about right. but did not have Denso written on it like the old broken one.
I was thinking of buying another sensor from Eurocarparts, this time a Denso one, but I don't want to spend another £70 for no reason. What do you all think?
Researching this I know there are many possible causes, but the most obvious to me is that the lambda sensor that I replaced the Denso one with is not giving the right signal. The one I bought was from ebay here. When it turned up it looked exactly like the Denso one I had taken off, and had a heater resistance of 2.5 Ohms which seemed about right. but did not have Denso written on it like the old broken one.
I was thinking of buying another sensor from Eurocarparts, this time a Denso one, but I don't want to spend another £70 for no reason. What do you all think?
#2
#4
....it's alright - I looked it up!
Last edited by talulah; 10-02-2014 at 04:56 AM.
#5
Thanks for that. I'm suspicious of the sensor so I think I might buy a new one - a genuine Denso one this time - and if that fixes the problem try to get my money back on the other one.
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