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

running lean/detonating drifting or cornering hard.

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Old Dec 6, 2014 | 08:00 PM
  #1  
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running lean/detonating drifting or cornering hard.

Recently tii swapped my car. Mods in sig.

When I'm drifting or cornering hard, the car bucks, runs lean, and detonates. In a straight line it runs 11-12afr 3k-6krpm and 10-11 6k-8krpm

This only happens when cornering hard or drifting.

Even happened today after just putting 3/4 of a tank of gas in.

Any ideas?


New walbro 255, new sock etc.

Fpr set to 43psi
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Old Dec 7, 2014 | 09:41 AM
  #2  
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I'd say check to see if it's seated correctly in the tank. Has the fuel tank ever been damaged at all?
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Old Jan 28, 2015 | 02:09 AM
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Yyyyyyyyyyyyyyyudodis
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Old Jan 28, 2015 | 12:41 PM
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ecu? turbo? boost?

Your fuel pressure is pretty high. Is there a reason for that?

The car (or more importantly, the ECU) doesn't know you are cornering vs driving straight. Look at things that are shaking loose, electrical connections, wiring, etc.
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Old Jan 29, 2015 | 12:49 PM
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are you using the na wiring harness? and do you have power steering?

this thread talks about if your using that and didn't wire in the knock box the power steering can send a "knock" signal to the ecu, causing timing retard, which may cause strange problems

https://www.rx7club.com/2nd-gen-arch...etails-813825/
When using the NA engine management harness, The wire running to Pin 1R needs to be cut or wired up to a knock box
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Old Feb 2, 2015 | 10:11 PM
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Check the fuel sock on the pump. Any differences with higher/lower fuel levels? I'm running fd pump from oreilly, never have any problems sideways or doing pulls. I've had nothing but problems with walbros...

Just my $0.02
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Old Feb 3, 2015 | 12:51 AM
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If nothing above works, I'd look into getting a surge tank
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Old Feb 4, 2015 | 10:47 PM
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The screen on my phone is cracked hardcore, I only saw part of the original post. Disregard some of my dumb questions clearly answered in the first post.
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