I replaced the spark plugs 2007
Cayman
. Before replacing fender well panels and wheels, I started the engine and ran for several minutes with no dash board warnings. Finished replacing fender well liners and wheels and started car again. This time I got a check engine light. Gas cap was not touched during the time period involved. Any thoughts?
Could be a bunch of things. First step is to pull the codes, that'll give you a better clue.
Can I pull codes using on board computer or do I need a scanner
You need a scanner. OBD2 can't usually be read by the car (some old OBD1 cars could do this).
In the US, we can often go to an auto parts shop and they will scan it for free, as well.
Note, in some cases, it's helpful to use a Porsche-capable scanner, as some of the codes could be Porsche-specific...
If I had to guess, you didn't get one of the electrical connectors on the spark plug coil packs fully seated. You have to hear them definatively click as you pull them down. The rubber boot makes it more difficult that it should be. If you pull codes, you'll show a misfire on one or more cylinders.
Moving the thread to 987 DIY - because fit better..
Please keep your hands and feet inside the thread while it's in motion.. do not attempt to leave until it stops moving.. for your safety and protection!
Eilenberger's Law of Troubleshooting:
"Look where you last worked.."
After removing and replacing the #3 cyl coil a couple of times thinking I had pushed it home, I was still getting a fault code. I finally did a resistance test on the coil and got a fail reading, ordered a new coil , installed it and finally no check engine light and after clearing the codes they did not return. One caution when replacing coils. The coil wires have a sheath and at the ends a boot. If you allow the boot to slide down the sheath it prevents one from pushing the cap up out of the way so you can see the electrical connection to be sure it is made. i finally had to remove the engine cover, fish the coil wire up and slide the cap over the sheath enough to allow the connector to protrude enough that i could see to make the connection good. (and I thought my TR 6 was hard to work on!) With only 65k km on the car I opted, for now to just replace the one coil.
Just completed placing a diode in the light switch to get Canada legal running lights. Searched everywhere locally for diodes. (Radio Shack is gone, replacement , The Source doesn't sell any bits) so I finally got them at, you guessed it Amazon. Ordered pack of 10 (smallest order possible) and they sent me 25. As a result, if there are any Canadians out there , with an American car, who want to get DRLs working and can't find a diode , let me know and I'll mail you a pair (just in case) for $3
Coil boots boots fit properly only one way. If they spin around on the coil harness the slightest when sliding back on the coil connector, they won't seat on connection properly which could also lead to future issues.
