99RTA

iTrader: (-1)

Can someone tell me which relay or fuse to disable so i can crank the engine over with out it starting. I want to test compression in a cylinder.

I have one cylinder that the threads on the spark plug are oily. I think its causing a misfire at idle. The plug doesn't really look fouled though just oily threads. Its number 8. I also notice the engine has a funny knocking noise when it misfires at an idle but only if its in gear. If i give it any throttle the knock goes away??? odd huh?

NVR2MCH

I got the same problem. My 7 is missing and 8 starts after 7. At idle its bad and sounds worst then when im driving or on the gas. Ive posted a thread on the canadian forum, let me know if you figure something out, ill do the same.

LS6427

iTrader: (2)

When I had a leakdown check done years ago the shop pulled the fuel pump fuse, they turned the enigne over for a couple seconds, then did the test.

slayerized6

iTrader: (12)

pull fuel pump fuse and unplug the 2 main coil harnesses.

Rhedalert

iTrader: (21)

I just recently did a compression test. All I did was pull the PCM power fuse. Done.

99RTA

iTrader: (-1)

What numbers did you get? All mine are around 160...all of them!

Rhedalert

iTrader: (21)

Mine were all between 145-155 psi. Motor was cold and hadn't been run in a week, and I forgot to open the throttle when cranking.

TedsB4Csled

iTrader: (6)

I got just above 150 on all cylinders, but also forgot to block open throttle. 100psi is minimum.

TedsB4Csled

iTrader: (6)

I just disconnected the 2 coil pack harness. There's one large connector on each side, right in the middle of the valve covers. I also removed the fuse to the fuel pump. Just like slayerized6 said. ...and block open throttle.