2004 Ford Edge FLS / RC / WPS Waveforms Misfire

smog1st · Post by **smog1st** » Sat Oct 12, 2019 12:26 am

2004 Ford Edge 3.0L 265K miles runs rough P0303 misfire, P0316 misfire stored. Mode 6 showed high misfire count for #1&3.

Odd cylinders are under manifold. I usually bust out my waekon secondary ignition tool just to get a beep to see if the coils are firing. Which they all were. I do a pico diagnostics compression test (customers seem to understand percentages more so i do that one first):

showed two cylinders weak. so i did my own with sync #2 sync. firing order 1-4-2-5-3-6

smog1st · Post by **smog1st** » Sat Oct 12, 2019 7:43 pm

Customer declined further diag, but can anyone tell me mechanically whats going on by these pulse captures i got?

i see the intake pull trace has a pattern going on

speck · Post by **speck** » Sat Oct 12, 2019 11:05 pm

Hi
Your Overlay Tool set up is wrong.Sync is set to No.1cyl.

smog1st · Post by **smog1st** » Sat Oct 12, 2019 11:29 pm

Hello, I could of swore i got it right. Both 1&3 are weak. (3)-6-(1)-4-2-5-(3)-6-(1) so when i did the overlay i was looking for a good current rise with two weaker ones on each side. I spaced and didn't put a sync when i had the FLS and WPS on it. Car is gone now

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