I had a lot of regen issues caused by my cat temp sensor failing. prior to this 260,000km never had a regen warning and since I changed the sensor no issues. every 300 miles or so sounds about right. When I was struggling to complete regens I would put on cruise control roughly 60mph and gear...
no issues at all since replacing cat temp sensor almost 2 months ago. (touch wood). the only exception being the very next day i had to clear a code for the NOX sensor but that was a one shot deal, maybe all the failed regens etc caused something not sure, but like I said it only happened one...
UPDATE: ok so 2 months has gone by no issues.... UNTIL this week. DPF 100% blocked again. I ran a regen (after several failed attempts) and was good for a couple days then back to 90%.
I hooked up AlfaOBD and the catalyst temp sensor circuit high (bank 1 sensor 1) was back but this time the...
Exact same thing just happened to me. I forced a regen after DPF 100% blocked. Next day engine light came on and was Nox sensor, I cleared the code and hasn’t come back on since
Hi all,
I recently got 100% full dpf see dealer warning. I connected my AlfaOBD to force a regen but it would shut down after about 5 minutes due to a cat temp circuit high P0428
the graph showed the cat temp steady around 630c then a straight shot up to 999.9c and shed idle down and quit the...
hey so how did you fix your P0428 error? was it the temp sensor? or O2 sensor?
I am having the exact same issue. parked regen stops due to catalyst temp sesor reading too high. runs steady around 600c then instanly bolts to 999 and stops regen