Mines been throwing P1518 since Feb. Two trips to the dealership and a dozen other shops, thousands of dollars later and it is still in Reduced Engine Power.
put optima battery.
Dealerdhips replaced throttle body and harness.
Mines been throwing P1518 since Feb. Two trips to the dealership and a dozen other shops, thousands of dollars later and it is still in Reduced Engine Power.
put optima battery.
Dealerdhips replaced throttle body and harness.
2003 RCSS Chevy 5.3L Fully Bolted, Cammed, Yanked, and 342s. Borla Exhaust w/ Electric Cutouts.
You need help but it needs to be in person by someone smarter than the places you have been.Originally Posted by 03chevytruck
Is it running in the reduced power mode or just the message?
I ended up checking everything you guys had suggested and it was a no go. Everything looked good, i even had the battery checked and it was good. I borrowed a voltmeter and made sure I was getting power to the connector.
The TAC was bad, the sucky part is I dont know how I broke it??
...Well, almost 100% of the time, if the TPS or Throttle Actuator gets messed up, it trips all 3 DTCs. ....
Once the codes have cleared and if they come back, then either your Throttle Position Sensor or Throttle Actuator is bad.Like what was mentioned above... The Throttle Actuator is a fragile piece once it has been removed. Can't really explain why it gets messed up--just know that it is a high possibility once those codes are thrown.
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
im having the same issue with an 02 escalade ext. clear the code then start the truck it will idle okay for a minute or 2 then go into REP, i get code 1515 and 1516, if i put the truck at about 1000rpms it wont go into REP. i had taken the intake tube off and was cleaning the TB while a buddy was opening the butterfly with the pedal in the truck, he said something about it going into REP but i didnt think anything of it at the time. i was using brake clean so im not sure if i got it on one of the sensors while the batter was connected and screwed it up. i ended up taking the TB off the truck cleaning it up and reinstalling it, with the battery connected and key on the TB was not getting any signal from the pedal. once i cleared the codes it worked but will still go into limp mode. i have checked the battery with a volt meter and it is 14 volts with the truck off. checked the wires all the way from the 2 sensors on the TB to the back of the intake. pulled hard and non stretched. checked both grounds on block not those either. should i just replace the sensors or buy a whole new TB. id use the one off my 04 SS 6.0 but it only has 1 sensor where the escalade is an 02 and has 2 sensors. any thoughts?
09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,
hey man i didnt even look at your location but thats where im from but right now im stationed in nc in the military. but my question was about this tac where does it go and where did you get it?
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