I changed my tps senor om my truck last night,
but i dont now if i have to adjust it.
6,2 -88 truck

Nope- but put it back in the position the old one was
And FYI, tps is throttle position sensor, so what you said was throttle position sensor sensor :D

Nope- but put it back in the position the old one was
And FYI, tps is throttle position sensor, so what you said was throttle position sensor sensor :D



ahhhhhhhh !!!!!!

Nope- but put it back in the position the old one was
And FYI, tps is throttle position sensor, so what you said was throttle position sensor sensor :D

Technically, the TPS used on the LH6 6.2 diesel is a throttle position switch - not sensor. No variable resistor like a throttle position sensors uses - just a set of on and off switches. On a early to mid 80s C-code, one set controls power to the EGR solenoid and the other controls power to the EPR solenoid. If there is a 700R4 automtic trans involved, then there is a third set of contacts that controls the lock-up torque converter. The switch is supposed to be adjusted so - whenever the throttle position drops below 8 degrees - the converter becomes unlocked.
There are at least four different part # TPSwitches used depending on application, altitude, etc. At the least, part#s 14050405, 14066239, 14066238, and 14066239.
With 1/2 ton, new body-style 1988 trucks - I'm not sure how much was changed. I've got a 91 1/2 ton with a 700R4, have to go out and look closely sometime.

Technically, the TPS used on the LH6 6.2 diesel is a throttle position switch - not sensor. No variable resistor like a throttle position sensors uses - just a set of on and off switches. On a early to mid 80s C-code, one set controls power to the EGR solenoid and the other controls power to the EPR solenoid. If there is a 700R4 automtic trans involved, then there is a third set of contacts that controls the lock-up torque converter. The switch is supposed to be adjusted so - whenever the throttle position drops below 8 degrees - the converter becomes unlocked.
There are at least four different part # TPSwitches used depending on application, altitude, etc. At the least, part#s 14050405, 14066239, 14066238, and 14066239.
With 1/2 ton, new body-style 1988 trucks - I'm not sure how much was changed. I've got a 91 1/2 ton with a 700R4, have to go out and look closely sometime.


This is exactly correct. Just for informational purposes, the late model trucks did indeed have a true throttle position sensor. I believe the change occured with the advent of the 4L60E.

Early 2500 series trucks also used a switch if the truck had a 700r4, but it only controlled torque converter lock up, because j code engines didn't have the other emissions crap.

Technically, the TPS used on the LH6 6.2 diesel is a throttle position switch - not sensor. No variable resistor like a throttle position sensors uses - just a set of on and off switches. On a early to mid 80s C-code, one set controls power to the EGR solenoid and the other controls power to the EPR solenoid. If there is a 700R4 automtic trans involved, then there is a third set of contacts that controls the lock-up torque converter. The switch is supposed to be adjusted so - whenever the throttle position drops below 8 degrees - the converter becomes unlocked.
There are at least four different part # TPSwitches used depending on application, altitude, etc. At the least, part#s 14050405, 14066239, 14066238, and 14066239.
With 1/2 ton, new body-style 1988 trucks - I'm not sure how much was changed. I've got a 91 1/2 ton with a 700R4, have to go out and look closely sometime.



I see, that's interesting, so I stand corrected, thanks all for providing us with the correct info

itīs a 2500 serie with emission control:D