Closed Loop begins too early

Post by **Gaskleppie** » Mon May 14, 2007 11:00 am

Is this with narrow of wide band closed loop?

Post by **Synoptic** » Mon May 14, 2007 11:37 am

Gaskleppie wrote:Is this with narrow of wide band closed loop?

narrow, closed loop. Stock O2, etc.. I never used Wideband Closed loop except for my own car.

Post by **calvin** » Fri May 18, 2007 10:19 am

Nick please test...

Post by **Synoptic** » Sat May 19, 2007 8:48 am

Ok. Last cars that came in had bad O2 sensor or simply no O2 sensor at all

But, I was told by a customer that it was not bad as before, but it still did the thing. My car is still broken. I have a car to tune today. Will see how it goes today.

Post by **Gaskleppie** » Sat May 19, 2007 10:03 am

I tested 0.0.41 Closed loop with narrowband is like stock on my own car. I tested several times warm start but the closed loop always started late. When the car starts cold, it stays open loop till you start driving or when you press the pedal a few times. Looks stock to me.

Civic Tsi · Post by **Civic Tsi** » Sat May 19, 2007 5:13 pm

0.40 seems to never start at all. When could we try 0.41 ?

Post by **Synoptic** » Sat May 19, 2007 6:07 pm

Gaskleppie wrote:I tested 0.0.41 Closed loop with narrowband is like stock on my own car. I tested several times warm start but the closed loop always started late. When the car starts cold, it stays open loop till you start driving or when you press the pedal a few times. Looks stock to me.

FYI, I never saw a problem with cold start, ebcause of the minimum ECT for closed loop that is at 81Celcius. I tested today, didint have a problem. Brand New NTK o2 sensor, but the sensor never gave the 3.88 volt. is it because of the patch for wideband that has been removed ? It seemed to work perfectly though.

Post by **calvin** » Sat May 19, 2007 8:43 pm

pathc is still there but not the patch that turn the closeloop on full time:)... So wideband doesn't work yet but all the 1.5v checks(removed when wideband) are still there