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Forum: Intake/Exhaust

04-19-2013, 01:23 PM

Replies: 9

Help! CEL P2A00 after HFC installed

Views: 1,915

Posted By gsg740

I used data-logs to compare A/F ratios between...

I used data-logs to compare A/F ratios between Bank1 and Bank2. the data logs show Bank 1 WB A/F is constantly richer than Bank 2 WE A/F. while Bank 1 A/F adj. is around 0.36. So I think ECU must...

Forum: Intake/Exhaust

04-19-2013, 12:08 PM

Replies: 9

Help! CEL P2A00 after HFC installed

Views: 1,915

Posted By gsg740

the innovate sensor is connected to the innovate...

the innovate sensor is connected to the innovate MTX-L gauge. I would like to keep tracking my A/F ratio from time to time. Becuase I know the stock WB O2 sensor is not as acturate as those...

Forum: Intake/Exhaust

04-19-2013, 11:47 AM

Replies: 9

Help! CEL P2A00 after HFC installed

Views: 1,915

Posted By gsg740

I just dont understand why would ECU adding fuel...

I just dont understand why would ECU adding fuel onth Bank 1 while the Bank 1 front O2 sensor reading is already too rich?

Is the rear O2 sensor contribute anything to the A/F ratio? or will the...

Forum: Intake/Exhaust

04-19-2013, 11:35 AM

Replies: 9

Help! CEL P2A00 after HFC installed

Views: 1,915

Posted By gsg740

well, the the Brek HFC come with 2 bungs on each...

well, the the Brek HFC come with 2 bungs on each bank. One for stock which is after CAT and another one is before CAT. Brek put two bolts close those two before CAT O2 bung.

I opened the driver...

Forum: Intake/Exhaust

04-19-2013, 11:12 AM

Replies: 9

Help! CEL P2A00 after HFC installed

Views: 1,915

Posted By gsg740

Help! CEL P2A00 after HFC installed

I just got my Brek HFC installed last week, after 100mile it throws a P2A00 CEL. (A/F Sensor 1 Bank 1 Circuit range/performance)
I cleaned the code & learned fuel trim. But same CEL came back again...

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