New to a 987... first issue. Weird Rev limiting...
05-09-2021, 07:12 PM
#1
2nd Gear
Thread Starter
Join Date: May 2021
Location: Staffordshire Uk
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
New to a 987... first issue. Weird Rev limiting...
Hi All I’m new member so be nice 😀
My new to me, 07 cayman has a strange issue where it seems to be limited to about 4-4.5k rpm. Happens on hard and soft acceleration. Almost feels like traction control kicking in but it’s isn’t.
During one attempt to test its symptoms and it did clear for a few seconds and the car accelerated quickly. Then the engine cut out, but restarted fine afterwards.
No CEL and my cheap obd2 reader shows nothing.
Research seems to indicate a possible MAF issue or variocam timing solonoids?
Any thoughts?
My new to me, 07 cayman has a strange issue where it seems to be limited to about 4-4.5k rpm. Happens on hard and soft acceleration. Almost feels like traction control kicking in but it’s isn’t.
During one attempt to test its symptoms and it did clear for a few seconds and the car accelerated quickly. Then the engine cut out, but restarted fine afterwards.
No CEL and my cheap obd2 reader shows nothing.
Research seems to indicate a possible MAF issue or variocam timing solonoids?
Any thoughts?
05-11-2021, 11:22 AM
#2
Racer
Is it PDK?
05-11-2021, 12:39 PM
#4
Addict
Rennlist Member
Rennlist Member
Is the car up to date on its maintenance including spark plugs and fuel filter?
The following users liked this post:
TMc993 (05-11-2021)
05-11-2021, 07:00 PM
#5
Banned
Join Date: Mar 2011
Location: Spring Lake, NJ, US of A
Posts: 10,085
Received 1,150 Likes
on
763 Posts
The cheapo OBD-II reader won't do the job. Porsches can have misfires that never set off the OBD-II/SES light. The ECU does store a record of them, but it's only really readable using a Porsche specific tool (or one capable of Porsche specific diagnostics.) That would be the first place I'd look - misfires can trigger this sort of behavior - the misfiring cylinder(s) are actually turned off to prevent fuel washdown on the cylinder walls. You also can do diagnostics on the MAF and variable-valve-timing. My suggestion for a 987 is the Foxwell NT130. Price is right (less than $160 if you ask nicely) and the software is excellent for the 957 (specifically - it's not as advanced for some newer Porsche models, but I expect it will get there..) I bought mine from the factory supplier in the US https://www.foxwelltool.com/ - send the sales email a message asking for a better price and they'll get back to you. At least that worked for me. Delivery was 2 days - in stock in the US apparently. You want to order it with one-vehicle-manufacturer included in the price, then you go to their website when you get it and download the Porsche software.