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CEL came on, no missing or other noticeable engine anomaly.
El cheapo ELM OBDII reader produced these codes: Was able to extinguish CEL.
P3104 Intake manifold air control solenoid - short to positive
P0104 Mass or Volume Air Flow "A" Circuit Intermittent
P0204 Injector 4 – circuit malfunction
This suggests an intermittent wiring short. Any ideas on where such might have occurred?
Thanks in advance
By Christiaan Poortman
Hello, I'm new on this forum and stumbled upon a new problem (or old) with my 2.5l 986 Boxster from 1997.
The problem occurs when the engine is started dead cold after sitting a few hours/overnight.
Engine starts immediately but the RPMs start to surge / hunt between 1100 and 700 RPM. This continues for about 10 seconds after which the idle smoothes out to the normal cold idle RPM.
The first pull away requires a tad more throttle then normal to prevent stalling. After this first pull, everything is almost normal and engine performance becomes better and better. When the engine is hot, the idle sits at 780 RPM with a minor fluctuation now and then (seems to be more than normal)
I've been to two shops (official Porsche dealer and local Porsche specialist). Porsche dealer couldn't find anything and the specialist found the camshaft sensor on the left bank to be unplugged - but now comes the strange thing - the cabling is nowhere to be found!!!!!!? Took the car home to check myself but didn't find anything.
No camshaft related codes to be found in the diagnosis and no CEL either.
Attached one pic showing the sensor and it's missing plug
Could someone help me out? - Is it possible for the engine not to throw a CEL when sensor is disconnected? - where is the sensor wire to be found?
Im working on a unique porsche project and as part of it im looking to use the current (>2016) generation 95B Macan LED HeadLights.
What im looking for is the Wiring Diagram from the service manual program, so i can trace what needs to be connected to where relative to my 997.1 wiring harness.
Yes, im aware this will be difficult. Im not looking to just plug and play.
I already have all the wiring for the 997.1 and 997.2 cars (and a few others)
Can anyone help
2006 997.1 S
I'm installing an AIM Data logger and want to add some additional Oil Pressure Sensors for monitoring.
I've been told that the OE location is in the upper right corner of the 456 Bank and that there is a tapped and plugged location
on the lower right corner of the 123 bank. I figured that would work fir one and I was hoping to add an additional one somewhere that would give me
a reading closer to the sump. The goal is to differentiate between G Force effected readings and if I'm running the sump dry.