xcopbf Banned 118 Member For: 14y 8m 25d Gender: Male Location: narre warren Posted 05/08/10 08:10 AM Share Posted 05/08/10 08:10 AM brought this up last week not to many replyed so try again have a bf mk2 xr6t has tune 60pound injectors cooler turbo back exhaust intake 14 pound boost made 313.9rkw 1 month ago was pulled over sum how they suspected I had gutted cat got done and did have a gutted cat so to pass road worthy put standard cat in passed back on the road car seems to be running rich could the stock cat cause this if so if I put a hi flow 100cpsi in would I need to get a retune done any help will do thanks. Link to comment Share on other sites More sharing options...
GOLDIE My new toy Lifetime Members 5,344 Member For: 21y 10m 9d Gender: Male Location: stanthorpe wine capital of qld. Posted 05/08/10 08:54 AM Share Posted 05/08/10 08:54 AM answer to both is retune with either cat.Ian Link to comment Share on other sites More sharing options...
xcopbf Banned 118 Member For: 14y 8m 25d Gender: Male Location: narre warren Posted 05/08/10 09:00 AM Author Share Posted 05/08/10 09:00 AM thanks will do. Link to comment Share on other sites More sharing options...
kovac Member 68 Member For: 16y 1m 18d Gender: Male Location: campbelltown Posted 15/08/10 04:04 AM Share Posted 15/08/10 04:04 AM This may not b it but when my stock 6t was running rich it ended up being the sensor on the back of the motor so ford replaced it and it's running ten times better Link to comment Share on other sites More sharing options...
daztbo FLY-FPV Donating Members 474 Member For: 15y 7m 3d Gender: Male Location: Greensborough Vic Posted 04/02/12 12:25 PM Share Posted 04/02/12 12:25 PM What sensor at the back of the motor got changed? Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,331 Member For: 19y 5m 8d Gender: Male Location: Perth Posted 04/02/12 04:12 PM Share Posted 04/02/12 04:12 PM Back of the motor sounds like Cylinder Heat Temp Link to comment Share on other sites More sharing options...
JVK Silver Donating Members 751 Member For: 19y 2m 13d Gender: Male Location: North West Hot Hell,VIC Posted 13/02/12 04:26 AM Share Posted 13/02/12 04:26 AM Luke is it possible for that head sensor to peg the 02 sensor at .8 .9v if its playing up? Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,331 Member For: 19y 5m 8d Gender: Male Location: Perth Posted 13/02/12 04:34 AM Share Posted 13/02/12 04:34 AM I doubt the CHT is pegging the 02, more likely the CHT is telling the PCM the car is still cold so the PCM is still referencing the fuel base cold table and the 02 is reporting back the rich mixture,can you log CHT? Link to comment Share on other sites More sharing options...
Mr_4.0 Member 1,096 Member For: 14y 1m 12d Posted 13/02/12 04:45 AM Share Posted 13/02/12 04:45 AM When my cht sensor wad playing up and reading zero under load it would cause a misfire condition on over run and also if I got back on accel to quickly. Would also cause extra burble on overrun due to the rich mixture. Link to comment Share on other sites More sharing options...
JVK Silver Donating Members 751 Member For: 19y 2m 13d Gender: Male Location: North West Hot Hell,VIC Posted 13/02/12 04:59 AM Share Posted 13/02/12 04:59 AM Havent looked to see if I can log cht with HP yet. Car started running rich last week,scanned the 02 and was at .8 .9v and not switching so I presumed it was the 02 sensor and relaced it with another but still end up with the same reading. Link to comment Share on other sites More sharing options...
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