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fuel cut after changing injectors

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apocalypsio

10+ Year Contributor
34
0
May 2, 2010
montreal, QC_Canada
I just changed my 450 cc injectors(wich I suspected were bad) for some FIC 750cc injectors I have DSM link v3 so I put the fuel settings for 750 cc but the car will fuel cut at boost , when I'm going over 4000 rpm foot to the floor. I put every thing as best I could I did notice that the little blue neck that goes into the fuel rail is shorter.

anyways I don't know what to do everything was working fine before excpet a bit of random small misfires wich was why I decided to see If changing the injectors would help (I have no boost leaks and I changed my fuel pump (255lph walbro) 3 weeks ago I had another 255 that started going bad was weird.I also changed the fuel lines and the fuel filter to a fuel lab
 

apocalypsio

10+ Year Contributor
34
0
May 2, 2010
montreal, QC_Canada
I'm running a 14b turbo with a 6 bolt engine 1 gen head in a 98 eagle talon. I got rid of the fuel cut but now the car is running kinda rich I can smell it and I still can't see my fuel trims Its as if the car doesnt see them.

I'll post a log up tomorrow I'll do a couple of Idle and wot logs thanks for answering so fast by the way.
 

apocalypsio

10+ Year Contributor
34
0
May 2, 2010
montreal, QC_Canada
OK so too let you guys know why I havent posted my logs yet my fuel line was cut a bit and now completly opened huge rip in the rubber line and was leaking gas like a it was going outta style.

I'm guessing that wasnt helping my performance , anyways I'm gonna change the whole line from the tank to the fuel filter to a stainless steel braided line with an- fittings.

Hopefully everything goes good after that I'll post the news
 

ramsack

Banned Member
3,286
21
Dec 27, 2007
West Lawn, Pennsylvania
Fuel delivery problems absolutely cannot introduce fuel cut. It's downright impossible. If it's really fuel cut then it can only have to do with air induction (boost leak). It could be an ignition problem.
 
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