Hello all. I recently purchased a 2003 TDI Beetle with 5 speed. The check engine light was already on. I bought from blueboy / lightflyer1 on this forum. He well documented the history of the car as well as the thousands of dollars he spent.
Just a quick baseline summary: the car engine had the head rebuilt. It has a Malone Stage 2 tune. It has had a ton of other improvements and upgrades as well. http://forums.tdiclub.com/showthread.php?t=448086
He was forthcoming with the issue and even gave me a new temp sensor, new thermostat, and thermostat housing. I replaced yesterday but I’m still getting a CEL. After hooking a diagnostic computer to it, I’m at 172 degrees Fahrenheit after ten minutes of idle. The thermostat, old and new open at 188. The thermostat, thermostat housing, and green and brass sensor looked fine. I’m certain they were replaced before blueboy / lightflyer1 had it.
The only other diag faults are glow plugs 1-3 are showing up. So, bottom line, the new thermostat isn’t opening because the car isn’t getting to the prescribed 188.... at least it’s not under an extended idle. And based off of that, it’s throwing a CEL.
Any guesses, ideas, suggestions out there? Thanks!
Daniel
Just a quick baseline summary: the car engine had the head rebuilt. It has a Malone Stage 2 tune. It has had a ton of other improvements and upgrades as well. http://forums.tdiclub.com/showthread.php?t=448086
He was forthcoming with the issue and even gave me a new temp sensor, new thermostat, and thermostat housing. I replaced yesterday but I’m still getting a CEL. After hooking a diagnostic computer to it, I’m at 172 degrees Fahrenheit after ten minutes of idle. The thermostat, old and new open at 188. The thermostat, thermostat housing, and green and brass sensor looked fine. I’m certain they were replaced before blueboy / lightflyer1 had it.
The only other diag faults are glow plugs 1-3 are showing up. So, bottom line, the new thermostat isn’t opening because the car isn’t getting to the prescribed 188.... at least it’s not under an extended idle. And based off of that, it’s throwing a CEL.
Any guesses, ideas, suggestions out there? Thanks!
Daniel