Running rich my mr2 1991 2.2 n/a is running rich and the engine area in pinging

The simple answer is NO, they are there to detect engine knock (pinging) caused by to much ignition timing or not enough fuel (engine running lean). If your knock sensor or sensors are not working the ECU will run the engine in a rich (more fuel) and retarded ignition which will cause a small loss of power and the engine will use more fuel.

Ahhhh..the Sporty has a rattle...or is it a ping? If your popping through the exhaust, the timing could be off and running rich (Check Spark Plug for dark sooty layer) If your engine is pinging could be advanced timing... pre-ignition happens on acceleration or under a load...loose valves will make noise all the time

Do you have the CV Keihin still? Or are you running an aftermarket carburetor ? Like an S&S?

Code P0327 indicates that the readings from the #1 Knock Sensor circuit are too low, is outside of its operational window and malfunctioning. Symptoms

• Check Engine Light will illuminate
• Engine pings on accelration
• Engine may be running hotter or colder than normal
• In rare cases, the engine may not exhibit noticeable symptoms

Common Problems That Trigger the P0327 Code

• Defective Knock Sensor
• Defective Knock Sensor Circuit or connections
• Defective EGR System
• Malfunctioning Cooling System
• Rich air/fuel ratio

Common Misdiagnosis

• Knock Sensor replaced when cause of code P0327 was a cooling system problem
• Knock Sensor replaced when cause of code P0327 was an EGR system malfunction

Need to have a code, running rich could mean a lots of things, temp sensor, o2 sensor, fuel pressure to high, get the code and come back, if the mechanic wont give you the code for free, go to auto zone in your area, free code riding.

Hi,
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P0069 Manifold Absolute Pressure - Barometric Pressure Correlation
Description:

• MAP (Manifold Absolute Pressure) sensor provides engine load and barometric pressure readings to the computer.
• When not replaced, vehicle may run rich or lean, experience pinging, excessive hydrocarbons in oil causing engine bearing wear, spark plug fouling, catalytic converter failure, poor fuel economy, inconsistent transmission shift and/or CEL illumination.

All the best,
Ben

there are only so many ways for gas to get into the oil.one someone purposely pured gas into the crankcase.two the engine is running very rich and not able to burn the excess gas,three the fuel pump is leaking gas into the crankcase,four the oil has not been changed regularly and the gas has thinned out to the point that it cannot seal the engine from the gas that normally is burned in the combustion chamber.If maintenance is regularly performed that fixes #4,I doubt that anyone would pour gas into the crankcase especially at the price of gas that fixes #1,if the carburetor is working as it was designed to then that eliminates running rich and fixes #2.if the above is good then the only thing left the fuel pump, can leak fuel into the crankcase and they won`t make noise necessarily.as far as the slight pinging one of two things can cause this, the engine is running slightly lean and or the timing is too advanced and needs to be reset to specs

dodgy injector or wiring

do not use any fuel additives at all. and only use 87 octane fuel nothing higher. 4.6 and 5.4 ford engines do have a pinging sound especially with a load. but it is normal

Check for a "Knock Sensor" rear engine area, behind intake, mounted in block. Replace with new.

try a higher grade of gas..