Jcornelius
New member
- Location
- New York, USA
- Car(s)
- 2007 GTI 6 speed
I have a question for someone more knowledgeable than myself. This is my first mk5, I bought it about 2 weeks ago for very cheap cause it has some issues. I’ve done new coil packs and plugs, but that’s about all. The idle is funky, if I have my ac on itll 9/10 times idle normal when I’m coming up to a traffic light. Occasionally it’ll stop at 1900 and then it’ll tick like 3 times on the way down like it’ll stay at 1900, then jump to 1500, 1200 etc. if the ac is off, it is a constant high idle. But sometimes it’ll go straight to 900 and slowly creep up in idle until about 1500 then jump back down to 900. I have a cel for p0171 and p0507. Too lean and high idle, anyone know what it could be? Pcv valve looks to be brand new and it idles rough with the dipstick out.