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Old 08-27-2010, 01:38 AM   #1
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I am soooooo lost!!!

Okay so i am so lost on what is happening. I bought a 2004 svt focus that had the xios turbo kit on it but the guy before me blew up turbo so figured i would put it back to stock and use it as a daily driver or maybe turn around and sell it. well these past weeks i have gotten all the parts that were required for it to be back to a regular focus, header, fans, air intake, tb, injectors, stock tune, oil pan, new hoses, new vacum hoses, ect. okay well now the real fun begins. start it up and it runs rich, no throttle response, when you get it to rev a little like 2,000 rpm it starts back firing out the exhaust and air intake. well thought maybe the tune from the turbo was still on there so took the computer out of my 2003 svt focus and has the same problems. well we unplugged the fuel pressure regulator sensor (on the side of the fuel rail) and it runs good, throttle response, good idle, no back fire ect. plug it back in and goes back to its crappy running self. well decide to pull the one off my car and see if that is the problem and doesnt fix anything. I am lost becuase we have checked the maf, tp sensors, new injectors, and even swapped parts off my stock focus that runs perfect. I need help becuase i am running out of ideas. Sorry this is so long but thought i would list all that i have done.


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Old 08-27-2010, 06:31 AM   #2
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Its got to have a tune on there. And I can't believe you other ecu worked in there with the PATS system.
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Old 08-27-2010, 09:47 AM   #3
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well with my computer i had to use my key to make it work it was a big pain but it worked. I thought that the computer would have a tune also that is why i swapped the computers and they both run good on my 03 focus but on the 04 it just doesnt want to run. I have tried 2 maf sensors, 2 tb, 2 fuel pressure regulator sensors, i just dont get it what other sensors would make it run like that?? i seems like it runs rich and it cant be just a tune because the stock computer on my 03 doesnt have a tune. This car has me running around in circles.
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Old 08-27-2010, 10:11 AM   #4
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Sure you put the right injectors in there? Should be 30# injectors with a red top.
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Old 08-27-2010, 12:48 PM   #5
See that video?
 
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should have kept it turbo and just replaced the turbo.
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Old 08-27-2010, 01:10 PM   #6
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Well I am waiting for a response from injectorwarehouse to make sure they sent the right ones because that is the next possible thing. I will probably in the meantime pull the injectors from my car and see if that clears anything up. I would have kept it turboed but am going to sell the kit and the car since I have a 86 saleen mustang I am building so will need the money and you can bet on it that that car will have a sweet turbo setup
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Old 08-30-2010, 01:08 AM   #7
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BINGO. i found it!! its the injectors!!!! I swapped the injectors from my stock SVT and it runs perfectly so i guess injectorwarehouse sent me the wrong ones so i guess what is a good price for some used injectors?? and does anybody have any??
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Old 08-30-2010, 05:39 AM   #8
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30s go for $50 or so used on here. What size did they send you?
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Old 08-30-2010, 09:07 AM   #9
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Quote:
Originally Posted by chspeeds View Post
BINGO. i found it!! its the injectors!!!!
Sweet! Thanks for the update.
Glad you got it figured out.
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Old 08-30-2010, 11:11 AM   #10
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Man, I would have run as fast as I could if someone was selling that. Glad to hear it is working out.
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