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Hi Porkface,
>if shielding was an issue, it wouldn't take this long to show up.
1. The ECUs get older every year and potentially more vulnerable to RFI/EMI
2. This problem dogged the previous owner for years and Volvo Dealers and Indies struck out trying to fix. Crap out every three months or so, same unfixed problem needing a tow, you'd think it was a Ford: Found On Road Dead
>oe sensors have foil wrap, nothing else. i've seen the outer insulation degrade >and the sensor still work.
My point is that foil is not the best shielding.
> replaced the flexplate.
Is there an easy way to tell that the flexplate needs changing?
Is there some tolerance from the flexplate to the edge of the flywheel
That you could check with a scale?
>resistance is futile. only way to test it is with a scope.
That won't help at the garage when the car is running fine, and if you could test while the car is gagging from EMI, then a spectrum analyzer would tell more than a scope.
> i fashioned a harness to plug into both connectors and have pig tails for
> scope hookup.
I was going to do that but Steve sent me a CPS harness from a 240 that he was junking. Then I found that you can just pry the boot off the Female EFI harness
connector and back probe the CPS pins easily from the drivers side. Putting a dab of dielectric silicone or silicone spray on the harness jacket will help
shove that boot back.
The 28MM EMI shield "Speedpak'ed" taking 10 days from China. It is pressed flat in a roll. In order to fish it over the CPS connector you first slide the braid over a sledgehammer handle to open it up. Then it slides over the male CPS connector OK without a lot of room to spare.
I put a big tie wrap near the and and pressed it down to where it hit the snap ferrite at the bell housing. You can push another 15" back over the male CPS connectorthen pull the end back over the mated connectors and along the firewall. I soldered it to the the engine ground strap that goes to the firewall damper. I'll rig up a better ground later, gotta find some copper braid, maybe use solder wick If I strike out.
I'm having a hassle with Brickboard delaying key strokes?
Constant ad bombs aren't enough.
Must he Google having their fun, Big Brother at work.
Keep cool, Bill
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