Blinking Check Engine Light after Hard Pull
#61
03-06-2020, 01:53 PM
The first thing I'd suspect with a P0420 is the O2 sensors. There's a sensor before and after the catalyst and the signals are compared to assess cat efficiency. If a sensor goes bad the system can misinterpret the readings. I've heard of more sensor failures than cat failures.
I had a sensor go bad, but I had a different code.
It wouldn't surprise me if the pops and crackles cause early failure of those components though.
I had a sensor go bad, but I had a different code.
It wouldn't surprise me if the pops and crackles cause early failure of those components though.
#62
03-06-2020, 01:58 PM
The first thing I'd suspect with a P0420 is the O2 sensors. There's a sensor before and after the catalyst and the signals are compared to assess cat efficiency. If a sensor goes bad the system can misinterpret the readings. I've heard of more sensor failures than cat failures.
I had a sensor go bad, but I had a different code.
It wouldn't surprise me if the pops and crackles cause early failure of those components though.
I had a sensor go bad, but I had a different code.
It wouldn't surprise me if the pops and crackles cause early failure of those components though.
#63
03-06-2020, 03:15 PM
Veteran Member
No need to do an oil change after using BG 44K, but maybe after using the CRC gear.
The difference is the BG 44K potentially cleans up some carbon deposits from the combustion chambers, injectors, fuel lines etc but it doesn't (and can't) touch the inlet tracts or backs of the inlet valves (being a GDI engine) so not a helluva lot of carbon by volume, but the CRC attacks the (possibly large) build ups of carbon crud in the inlet tracts and on the backs of the inlet valves, so potentially a lot more carbon crud being flushed into the oil.
I applied the CRC treatment just after my last oil change a couple of months ago, not by design but because I didn't figure out how to easily apply the CRC treatment until after the oil change.
But when I do my next oil change in four months' time I will apply the CRC treatment immediately before I drain the old oil.
In the long run it probably doesn't make a helluva lot of difference but these engines are fussy with oil quality etc so I figure every little bit helps!
The difference is the BG 44K potentially cleans up some carbon deposits from the combustion chambers, injectors, fuel lines etc but it doesn't (and can't) touch the inlet tracts or backs of the inlet valves (being a GDI engine) so not a helluva lot of carbon by volume, but the CRC attacks the (possibly large) build ups of carbon crud in the inlet tracts and on the backs of the inlet valves, so potentially a lot more carbon crud being flushed into the oil.
I applied the CRC treatment just after my last oil change a couple of months ago, not by design but because I didn't figure out how to easily apply the CRC treatment until after the oil change.
But when I do my next oil change in four months' time I will apply the CRC treatment immediately before I drain the old oil.
In the long run it probably doesn't make a helluva lot of difference but these engines are fussy with oil quality etc so I figure every little bit helps!
Last edited by RGPV6S; 03-06-2020 at 03:18 PM.
#64
03-06-2020, 04:38 PM
Veteran Member
But I drilled a small hole in the T as you said, just large enough to insert the aerosol's spray hose. After treatment, I covered the hole with a USD quarter-sized circle of aluminized duct sealing tape (which is resistant to heat, I use it on my house's boiler chimney duct). No issues so far with that, but it's been winter...
I check it each time I open the bonnet. If the removable tape fails, I can plug the hole with a stubby wood-screw.
#65
03-06-2020, 04:38 PM
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Join Date: Feb 2014
Location: Adelaide, South Australia
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Piece of cake, one man operation and no need to cut or drill anything!
Last edited by OzXFR; 03-06-2020 at 05:34 PM.
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