About20ninj45

Hey folks, wanted to try and get to the bottom of my REP. I'm going to log a drive on the way home to see if it does it again. What should I log?

03sierraslt

iTrader: (22)

When does it do it? What is your setup? Any accompanying codes?

Atomic

iTrader: (42)

The amount of air you are ingesting is way more than the computer thinks it should be.

smokeshow

iTrader: (16)

Definitely not the only entry condition for REP! Lol...but yeah its the most common among DIYers.

About20ninj45

P1516, so I know it's related to tps and or throttle. I logged some channels, but I primarily noticed that my tps gives me percentage but not voltage. Voltage stays at zero the entire time. I have pulled out my fluke yet, but I should be seeing that 0-5v, which I'm not. It randomly does this, but I notice it mostly on the highway 75 percent of the time, about 25Percent on the road.
06
Express 3500 extended 6.0 stock

03sierraslt

iTrader: (22)

That should be a cable throttlebody right?

About20ninj45

No, its drive by wire.

Last Call

iTrader: (4)

Can you pull the freeze frame data for the DTC? That may help.

DrX

iTrader: (7)

You won't be able to log TPS voltage with HPT or EFILive on trucks pre GMT900.

Most common causes of P1516 are a weak throttle motor due to an internal break in the yellow or brown wires near the connector, weak engine harness ground, or a sticking throttle blade.

About20ninj45

update, battery drained to zero, left in that condition for a certain amount of time, power battery up, no rep since this post. Upon inspection, no broken wires at the connector. will keep my eye on it.