Compression test question + check engine/timing question

[Bronze MFP]

I did a compression test today and got 200 psi across the board (+- 2 psi) The FSM says 179 psi is standard. Any clues as to why mine is almost 20psi high?

Second question. When I did the compression test, i removed the 2 wiring clips attached to the distributor ( this is a 1995 with the internal ignition coil)now when I start the car, I get a check engine light and my timing at idle is 15 degrees btdc. Did one of the connectors on the distributor trip the CEL?Do I need to clear the CEL before I take off the distributor/upper front cover to remove my timing chain guides?Thanks in advance

-Neil

[benemorius]

Could you describe exactly how you performed the compression test?

And are you saying you left those things unplugged??

[Bronze MFP]

I fixed the CEL, i accidentally unplugged the cam angle sensor when i did the compression test.

anyways, for the test, i did it exactly as the FSM says to, with the engine at operating temp, take the fuel pump fuse out, crank the engine till it dies, remove all 4 sparkplugs, put the tester in cyl-1 and hold the throttle wide open while you crank the engine.I checked each cylinder 3 times just to be sure, every time 200 psi.I talked to a friend tonight that said it might be carbon build up. I don't know, this is the first time i've ever heard of having compression numbers that were too high.

[Dattebayo]

perhaps you have SOHC pistons in your DOHC.

My numbers were similar if i remember correctly. Does your KA seem to rip all other KA's to dust? This is an important symptom...

[Bronze MFP]

I wish i had SOHC pistons... but nope, just a bone stock KA under the hood. It runs strong, but not that strong.

[Dattebayo]

Do you know for sure? Were you the only owner of the car?

[Bronze MFP]

the guy i bought it from didnt mod it at all, it was just his weekend car or something, and before that it was a business lease car or something like that, at least thats what carfax said... so i'm almost certain the engine is stock.