Air/Fuel Mixture
#1
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Air/Fuel Mixture
Hello, I just picked up an '87 FC N/A and it is running really rich. I can smell fuel every time I start the car and sometimes it will puff a little gray smoke out of my exhaust. It will backfire decelerating at higher RPM's and I can hear subtle pops as the RPM's drop. I have been trying to read about how to adjust it, my Chiltons manual doesn't say much and I read somewhere online that it is ECU controlled. The best I can come up with is this link http://mazdarx7.iougs.com/deceleration.shtml
Can someone shed some light on this for me?
P.S. I am new to RX7's and rotory motors.
Can someone shed some light on this for me?
P.S. I am new to RX7's and rotory motors.
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#4
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Full tune up should include a lot of little things
filters - all of them
fluids - all of them
plugs/wires
change out all of the wearables.
This should cure most of the problem.
Once that is all done, you can focus on other more specific issues.
filters - all of them
fluids - all of them
plugs/wires
change out all of the wearables.
This should cure most of the problem.
Once that is all done, you can focus on other more specific issues.
#6
Rotary Freak
Hello, I just picked up an '87 FC N/A and it is running really rich. I can smell fuel every time I start the car and sometimes it will puff a little gray smoke out of my exhaust. It will backfire decelerating at higher RPM's and I can hear subtle pops as the RPM's drop. I have been trying to read about how to adjust it, my Chiltons manual doesn't say much and I read somewhere online that it is ECU controlled. The best I can come up with is this link http://mazdarx7.iougs.com/deceleration.shtml
Can someone shed some light on this for me?
P.S. I am new to RX7's and rotory motors.
Can someone shed some light on this for me?
P.S. I am new to RX7's and rotory motors.
Timing also matters. Set the timing using a timing light with a HOT engine and its rpms well under 1100rpm.
Lack of a working catalytic converter will give you heavy exhaust fumes that some consider a *gas* smell.
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