hey guys i need a hand i just had my injectors cleaned and balanced and i'm running 550 primary and 720 secondary with a 90 turbo on an 87turboll i have the fuel cut defender no cats 2.5 down pipe and i'm having a huge power loss at 3800 and i've been reading i just need to rewire the ground but where is it and how do i ground it ? what would the best thing to do ? please help i think this is my last prob to fix https://www.nopistons.com/forums/pub...1047683473.gif

You can't just throw in bigger injectors with just the stock computer. The secondary transition is @ 3800rpm, regrounding will not help your problem. You need atleast an S-afc to control those...

the stock ecu doesnt know you have bigger injectors, so when they turn on at 3800 its prolly too rich



mike

i didn't take that into thought but i changed them back to all 55O CC and i still have a power failer , i'm not sure what else it could be other then the bad ground i'm also having probs with the idile but i think thats because the person that owned it before screwed around with it . if you have any other ideas other then regrounding it plz let me know i really would love to be driving it soon . https://www.nopistons.com/forums/pub...1047683473.gif

adjust the tps

FAQ

If you think you are having ground problems then try a couple and see what happens. I have one running from the negative terminal on the battery to the frame rail with 2 guage wire. I also have an extra one running from the engine block to the firewall, separate of the stock one.