Might have already been talked about but i searched and didnt find what im looking for. Can you change the injector duty cycle with HP tuners? 97 2.2L


http://www.cardomain.com/ride/2090440

Yes and no...

Yes in that you can modify what is called the duty cycle multiplier.

No in that the base duty cycle (pulse width) is calculated based on the VE tables.





4cyltuner.com - Information Source For 4 Cylinder Tuners
Buy stuff from CarCustoms Ebay! Won't be disappointed!

Speaking of this, where do you look to see what your injector duty cycle is?



FU Tuning

Well the reason im asking is because i have the ford green tops in right now but i have to run next to 0 fuel pressure to keep it from flooding it self. So if i can change the duty cycle i can increase the fuel pressure?


http://www.cardomain.com/ride/2090440

^ You need to change your injector constant, not your duty cycle.

John-
Its in the scanner, its one of the PID's.





4cyltuner.com - Information Source For 4 Cylinder Tuners
Buy stuff from CarCustoms Ebay! Won't be disappointed!

Your injector duty cycle is the end result of what you set your VE tables to, and the VE tables are shifted when you alter the injector constant. IE: you change your duty cycle by changing the VE tables, and when you change the injector size, you change the injector constant to make the existing VE tables a better match, and tune from there.


15.3 @ 89.97mph - '01 SFGT
'98 Acura 1.6EL Sport 5M Y7/Y8 mini me

Oh ok thanks this dumb guy in my class said that lol... but you can change the constant with hp?


http://www.cardomain.com/ride/2090440

yes thats how you scale for bigger/smaller injectors

You should all be glad you dont have a MAF based PCM, its 10x harder to scale for



1989 Turbo Trans Am #82, 2007 Cobalt SS G85

Rodimus Prime wrote:yes thats how you scale for bigger/smaller injectors

You should all be glad you dont have a MAF based PCM, its 10x harder to scale for

I'm very thankful we do not have MAF!!



FU Tuning