Issue: When the engine is cold (temp qauge less than 80f) it takes very little throttle to cause limp mode and flashing GP light, no other lights. Key off, key on and it’s cleared. Once warm it’s flawless. Each time limp mode is triggered it sets a code for the oil pressure switch. I don’t know the code yet, it still at the shop.
It’s actually at its second shop and each has changed the switch out without change. Both shops are reputable and somewhat stumped at this point. VCDS logging doesn’t show anything out of order. They’re going through the wiring at this point but I’m not hopeful.
A little searching here and I’m nervous about the oil pressure. 1) I read the oil pressure switch doesn’t kick in until 2000 rpm (about when limp mode occurs), and 2) oil pump and hex shaft are potential failure points.
Thing is they oil pressure light never illuminates so I’m not sure it’s an oil pressure problem.
I’m tempted to cover my bases and have the shop replace the pump and hex shaft anyway, one of those better safe than sorry things. Maybe put in a manual gauge as well just for the peace of mind.
Car has 85k miles on it, full delete done around 70k with Malone tune done by the shop that has it now.
Any thoughts, validation or otherwise, are greatly appreciated. I’ll probably be getting it back unsolved if wiring or oil pump don’t work and I’m not sure where to go next.
Thanks,
Bob
It’s actually at its second shop and each has changed the switch out without change. Both shops are reputable and somewhat stumped at this point. VCDS logging doesn’t show anything out of order. They’re going through the wiring at this point but I’m not hopeful.
A little searching here and I’m nervous about the oil pressure. 1) I read the oil pressure switch doesn’t kick in until 2000 rpm (about when limp mode occurs), and 2) oil pump and hex shaft are potential failure points.
Thing is they oil pressure light never illuminates so I’m not sure it’s an oil pressure problem.
I’m tempted to cover my bases and have the shop replace the pump and hex shaft anyway, one of those better safe than sorry things. Maybe put in a manual gauge as well just for the peace of mind.
Car has 85k miles on it, full delete done around 70k with Malone tune done by the shop that has it now.
Any thoughts, validation or otherwise, are greatly appreciated. I’ll probably be getting it back unsolved if wiring or oil pump don’t work and I’m not sure where to go next.
Thanks,
Bob