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Forum: General Maintenance and Repair

10-06-2010, 09:00 AM

Replies: 6

Stock ECU is running too lean?

Views: 2,117

Posted By 1969 Datsun 510

Re: Stock ECU is running too lean?

No, I'm using a PLX (brand) SM-AFR (model) wideband controller and a Bosch 17014 5-wire WB O2 sensor. The controller has an analog output scaled to simulate the output of a narrow-band sensor. This...

Forum: General Maintenance and Repair

10-05-2010, 04:56 AM

Replies: 6

Stock ECU is running too lean?

Views: 2,117

Posted By 1969 Datsun 510

Re: Stock ECU is running too lean?

Not using any oil. It's lean at WOT, not rich. How would one calibrate a WB o2 sensor? Send it back to PLX?

Forum: General Maintenance and Repair

10-01-2010, 03:39 AM

Replies: 6

Stock ECU is running too lean?

Views: 2,117

Posted By 1969 Datsun 510

Re: Stock ECU is running too lean?

I noticed this morning that the lean condition seems to go away as soon as I reach WOT. I guess this is when the ECU switches from closed loop to open loop? So in closed loop the A/F is very lean,...

Forum: General Maintenance and Repair

09-30-2010, 07:49 AM

Replies: 6

Stock ECU is running too lean?

Views: 2,117

Posted By 1969 Datsun 510

Stock ECU is running too lean?

I'm running the stock ECU on my OBDI Nissan SR20DET (s13 red top) motor and everything has been fine for about 15,000 miles. I've always used the same Wideband (PLX) sensor, sending a narrow-band...

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