If you are an intellectually challenged person please do not send me moronic emails criticizing me. First ask for an explanation, or better yet do your homework.
I received the email below from somebody with the nick
realtuner@replicar.ca. He is the same person posing as JoePro here and seeks to hide his identity. Someone on another forum found him out:
"His real name is Ron Davies and he must be smoking crack.
http://www.ptcruiserlinks.com/forum/...TOPIC_ID=13054
http://www.replicar.ca/kitcar/index.html
He has several know-it-all posts and is really just talking out his ass."
I cross matched the results and there is no member "realtuner" on that 21 member forum. Only the admin can use the domain name replicar.ca. He also had a 2001 N/A PT.
What a freakin coward and a stupid one too. Ever hear of Hotmail? The litany of stupidity is too much to bear.
Full text of the email:
"What the heck is this? Have you NEVER worked ona car before? Do you know abosolutely NOTHING about closed loop EFI?
"Reducing intake restrictions effectively changes the fuel mixture by increasing the air in the fuel charge. The new air to fuel ratio (AFR) will produce a denser fuel energy charge that will explode with greater force and thus produce more energy."
What a load of crap. The oxy sensor detects changes in the exhaust 100s of times every second, and counteracts ANY richening/leaning in the map.
Good grief, you should not be dispensing tuning tips to anyone!"
My Response:
"You can always tell a persons intellect level by the quality of their communications.
You obviously understand nothing about tuning. A car runs under closed loop while in idle and cruising. The moment you hit WOT, the car goes into open loop because the narrow band o2 sensor is basically a 3 position switch. The car dumps fuel and runs rich to keep the temps down.
If you had the proper instrumentation you would see this yourself. Better yet get the service manual where it says:
ACCELERATION MODE
This is a CLOSED LOOP mode. The PCM recognizes an abrupt increase in Throttle Position sensor output voltage or MAP sensor output voltage as a demand for increased engine output and vehicle acceleration. The PCM increases injector pulse width in response to increased fuel demand.
² Wide Open Throttle-open loop
DECELERATION MODE
This is a CLOSED LOOP mode. During deceleration the following inputs are received by the PCM:
² A/C status
² Battery voltage
² Inlet/Intake air temperature
² Engine coolant temperature
² Crankshaft position (engine speed)
² Exhaust gas oxygen content (upstream heated oxygen sensor) ² Knock sensor ² Manifold absolute pressure ² Throttle position sensor ² IAC motor (solenoid) control changes in response to MAP sensor feedback The PCM may receive a closed throttle input from the Throttle Position Sensor (TPS) when it senses an abrupt decrease in manifold pressure. This indicates a hard deceleration (Open Loop). In response, the PCM may momentarily turn off the injectors. This helps improve fuel economy, emissions and engine braking.
WIDE-OPEN-THROTTLE MODE
This is an OPEN LOOP mode. During wide-openthrottle operation, the following inputs are used by the PCM:
² Inlet/Intake air temperature
² Engine coolant temperature
² Engine speed
² Knock sensor
² Manifold absolute pressure
² Throttle position
When the PCM senses a wide-open-throttle condition through the Throttle Position Sensor (TPS) it deenergizes the A/C compressor clutch relay. This disables the air conditioning system and disables EGR (if equipped).
The PCM adjusts injector pulse width to supply a predetermined amount of additional fuel, based on MAP and RPM.
This is where a piggy back computer and wideband O2 is used to tune.
Now dont bother me again. I dont have the time to educate you."