928 HELP

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07-17-2014, 08:41 PM

#16

davek9

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Quote:

Originally Posted by michaelathome

CJ,

I am in SR, right next door. I would check the coils as well. If you look at the routing of the spark plug wires they cross in the front of the engine 1,3,5,7 and 2,4,6,8. In that way if one coil failed you would still drive. All that unburned fuel is heading into the cats and igniting there as the exhaust exits the block.

We had another NoVa owner ignite his car in this same manner.

Michael

This is totally incorrect, the reason IS NOT SO YOU CAN DRIVE CAR HOME, OMG incorrect info like this is why people are burning up their cars!

Also it's 1, 6, 7, 4 and 5, 2, 3, 8 from the caps

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07-17-2014, 08:44 PM

#17

michaelathome

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Quote:

Originally Posted by davek9

This is totally incorrect, the reason IS NOT SO YOU CAN DRIVE CAR HOME, OMG incorrect info like this is why people are burning up their cars!

Also it's 1, 6, 7, 4 and 5, 2, 3, 8 from the caps

I believe that you quoted me incorrectly on the "drive your car home" and you are right to correct me on the firing order. I was using the description as an example only.

Thanks!!

Michael

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07-17-2014, 09:50 PM

#18

michaelathome

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Quote:

Originally Posted by cjfisher

Cats are off the car now and rattle like crazy. Lots of dislodged catalyst rattling.

I do not claim to be a Porsche mechanic but every car has the same basic systems. I appreciate all of your input and tips.

Keep it in mind that a well sorted/running 928 shouldn't need the cats. They are there to scrub a bad running car and meet VA standards but they are NOT needed.

Michael

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07-18-2014, 10:22 AM

#19

cjfisher

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You guys are great. A light bulb went off when reading through this. I thought my timing light was malfunctioning when I connected it to the #1 wire as it worked intermittently. I pulled that cap and the coil wire had a big gouge in it! I ordered 2 new coil wires and cant wait to get them on! I will post the final results. Thanks again!!!