ECU limits injection to 80mm to 3500 rpm. Citroen C5 2.2Auto

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ECU limits injection to 80mm to 3500 rpm. Citroen C5 2.2Auto

Postby Nemo_K30 » Wed Sep 18, 2019 12:33 pm

Hello. Faced such a problem at car, the ECU limits the injection to 80mm until the engine reaches 3500 rpm. After that, the injection rises to 88mm as requested in the firmware. Help, which limiter could I skip?
Car Citroen C5, 2002, 2.2(4HX) Automatic gear

123.rar
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Re: ECU limits injection to 80mm to 3500 rpm. Citroen C5 2.2

Postby adriancl » Wed Sep 18, 2019 4:54 pm

Your Smoke limiter map is moded only an last column,for sure can't get more fuel at low rev.Injection duration untouched,you get fuel more fuel but you must ask for it.

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Re: ECU limits injection to 80mm to 3500 rpm. Citroen C5 2.2

Postby Nemo_K30 » Fri Sep 20, 2019 11:08 am

adriancl wrote:Your Smoke limiter map is moded only an last column,for sure can't get more fuel at low rev.Injection duration untouched,you get fuel more fuel but you must ask for it.

Car remap on MAP-sensor. Smoke lim map remained changed after the previous version of the firmware that worked on the MAF.
The injection map has a data range of 70-140. The question is not in the quality of AFR, the question is why there is a limit of 80mm in the range of 800-3500 rpm
123.jpg

My problem is that in the range of 800-3500 rpm I get an injection restriction of 80, after 3500 rpm - the injection rises to 88, as requested in the TL card.
I tried the same firmware on a car with a manual transmission (ported the same changes to the firmware), there I did not meet such a restriction.
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Re: ECU limits injection to 80mm to 3500 rpm. Citroen C5 2.2

Postby Nemo_K30 » Fri Sep 20, 2019 11:21 am

Screanshot from Lexia
800-3500rpm
3500_80.jpg


3500-4500rpm
3700_87.jpg
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