KOER code problem

[SVOJames]

I'm chasing a problem I thought was a blown head gasket, but I don't think that's the case, so I verified timing, TPS, and fuel pressure, then went to pull codes.

50 dollar Actron Scanner, I've used it before just fine. KOEO test shows a code 11, but KOER test is fubar.

There is a switch on the scanner, it has a hold position and a test position. Start the car with the switch on hold, then when I move it to test, engine RPM increase to around 2200 for 15 or so seconds, something I have not noticed before.

Engine RPM comes back down, the light blinks twice for the Engine ID. About 6 to 20 seconds after that the light should blink once for me to do the "mash the accelerator to the floor test", but it doe not. Instead, the light comes on & stays on. The included instruction book does not mention this scenario.

Any ideas where to start looking for why I can't get KOER codes? Buy a new scanner, swap out PE's, or is this going to be one of those hard to figure out problems?

Thanks in advance,

James

[SVOJames]

We tried doing the snap test last night when the steady light came on, no change in the light after 2+ minutes.

Double checked again today, saw that the 2 blinks for the Engine ID occur doing the high RPM phase of the test, not after the RPM comes down. My neighbor/mechanic remembers the high idle at the start of the test.

Any other ideas? I pretty much need to have an SVO ready for the Reunion by Sunday, work travel has me pretty much tied up after that. I'm getting the 9L ready as a backup while I try to fix this.

[Erics SVO]

Maybe a new battery in the tester?? I know mine gets a little wonky when the battery is low.

[SVOJames]

Brand new battery in the tester.

[Pat_in_L.A.]

Snap test has messed up many people many times.

[SVOJames]

I gave up, and took it to my local Ford dealer to run codes, he got an 11 on both KOEO & KOER, so I'm guessing the tester is bad (device or person).