2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Air and fule ratios too lean

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Old Dec 14, 2001 | 03:42 PM
  #1  
SiyahGTU's Avatar
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From: St Louis, MO, USA
Air and fule ratios too lean

I just bought a TII with bonez mid and down pipe and some kind of cold air induction. There are no fuel mods to the car. I am wthinking that it is running lean and could use more fuel. As far as I understand it "fuel cut defensers" only fool the computer againts shutting off fuel supply.

A high output fuel pump sounds to be a better idea. Is there a specific output that I need to look for in this setup of exhaust and intake?

Any help would be appreciated
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Old Dec 14, 2001 | 05:09 PM
  #2  
mazdaspeed7's Avatar
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From: Savannah, GA
Go for a Walbro pump. I think www.summitracing.com has them for a reasonable price. You probably should also get an adjustable fuel pressure regulator so you can raise the fuel pressure if necessary.
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Old Dec 14, 2001 | 07:57 PM
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From: Okinawa, Japan
Make sure your fuel pump is getting the correct voltage. If it's not, it might cause a run lean situation. If it is getting the right amount of voltage, then think about spending some money to fix this problem. Do a search for it and you'll find instructions for it. Good luck.

jerk_racer@hotmail.com
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