#Diy 4l60e shift kit install
#Diy 4l60e shift kit tv

Short of boiling the fluid, there are seldom short-term issues. However, it is not as critical as some would have you believe. Transmission temperature is something you hear discussed quite often. Not only can this hurt the performance of your car, but it can also cause damage to your transmission and even your engine. ItвЂ™s very important to make sure, when doing engine modifications, that the person doing the tuning understands all of these things well. When you change the ability of the engine to take in air, the programs used to compare these variables becomes inaccurate and can, again, adversely affect engine and transmission operation. Since the PCM is programmed that a given current equals a certain amount of air based on the original engine specs, the RPM the engine is turning with throttle opening. YouвЂ™re taking in more air than the PCM determines based on the current passing through the MAF. In the case of the head and cam package, you can get a reverse effect. This makes the PCM assume less torque or power output from the engine and may even cause this to be true by leaning out the mixture significantly. Basically, the PCM thinks the car is taking in less air than it is actually getting. When this happens, several things can be misinterpreted by the PCM.Д«ecause the wire is warmer and the current lower, the PCM may lower line pressure or make the car run lean. In the case of the latter, the oil can actually coat the resistant wire and insulate it causing the air passing over the wire to be unable to cool the wire thereby lowering its resistance and increasing current. Other things that can affect it are a dirty air filter or an over-oiled air filter. CAMS, INTAKE, and HEADS can affect this level. This in turn affects transmission line pressure and, in extreme cases, can have an effect on shift timing. This is then compared to set parameters in the PCM program as a determining factor for everything from fuel to air ratio to estimated engine torque output. This current is what the PCM reads to determine how much air is entering the engine. When warm resistance is increased, current is decreased. It is cooled and when a conductor is cooled, resistance decreases and current can increase. A current is passed through it as air travels across this wire. In some cases with large cams an issue with the MAF may cause quick shifts from 1-2-3-4 at WOT and require adjustment of the MAF tables in the tune.Д«asically a MAF sensor is a piece of resistant wire. Though this does not greatly affect shift timing, it does affect shift firmness and can cause erratic shift if faulty or incorrect. Determines shift firmness and greatly affects kick-down and part throttle up-shifts.Д¬. I list these together because there is interdependence between them.Д«. They are listed below in descending order:ДЄ. It is dependent on many things to determine shift timing. In the 4L60E the up-shifts are completely controlled by the PCM. You may be able to hold gears down by using the shifter, but you cannot cause the up-shifts to occur before the PCM commands it. On the 4L60E, however, it is strictly a PCM programming function.

#Diy 4l60e shift kit tv

It is somewhat adjustable with the TV cable setting. In the 700R4, this is a function of governor pressure versus TV pressure.

#Diy 4l60e shift kit install

While we do install a shift kit to improve shifts and reduce slip, this has no affect on when the transmission shifts.