I need my car running in about 45 minutes and the compression test isn't working! I disconnected the two relays behind the battery up on the firewall next to the master cylinder. In Corbin's writeup he said there should be two or four. Well I only saw two.

Anyway my problem is that the gauge isn't reading anything. What's the problem?

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HAD: '98 Eclipse RS

HAVE: '04 Grand Prix GTP Comp G

then you're not threaded into the head right and sealing air in there.

or the guage is fucked

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~Chris
03 SRT-4

or your engine is haha.. j/k.. most likely bad connection man..

~STV~

Isn't the point of the test to have air sealed in there so the gauge can read off of it? In Corbin's writeup it said to screw it in tight, which we did. It doesn't even sound like the motor is even moving to make any compression...I don't get it.

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HAD: '98 Eclipse RS

HAVE: '04 Grand Prix GTP Comp G

1) check to make sure the the part u screwed in has a check valve or it will not hold pressure
2) r u holding the throttle at wide open
3) how long r u turning the engine over?
if it does have the check valve and u r doing the things above right ur gauge is fucked
also make sure u got all the plugs out when u do the test that way there is equal resistance for each cylinder when doing the test.

Hmm..how exactly are you going about doing this? In ohterwords, describe what you are doing..maybe that will be easier..

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

is the engine even cranking, you probably disconnected the ASD relay and now the starter isnt even turning, you just want to stop fuel
ie fuel pump relay

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

There's two relays up on the firewall, I disconnected both of them. They're the ones that stop spark and fuel correct? There's a grey one and a black one. Those are the relays I disconnected. In Corbin's writeup there wasn't much clarity as to which ones were which or what they did. He just had that there's 2 or 4 relays (Looks like I only have 2) and that they need to be disconnected.

But yeah, nothing's cranking, nothing's happening.

____________________________
HAD: '98 Eclipse RS

HAVE: '04 Grand Prix GTP Comp G

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)

you know what, I hate to admit it, but I had the exact same problem the first time I attempted a compression test on my car. I even made a thread on it, much like this. No one could figure it out.

Until I held the clutch down while turning the key.

Make sure that you are pushing in the clutch.

I was too embarassed to reply to my thread with a conclusion. lol

LOL oh my fucking gosh. No, I was so nervous about the stupid numbers that I didn't even have the clutch in. Holy crap man points to you, that's probably exactly what it is. I win the noob of the year award on this one! Thanks guys, I'll make sure that's the problem when I get my new plugs in and try it again and I'll post the numbers.

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HAD: '98 Eclipse RS

HAVE: '04 Grand Prix GTP Comp G

funniest post ever. period.

400whp or bust.

HAHAHA....I was like that too....nervous about finding out my compression #'s....Are they all good?

I eat emo kids for breakfast

1995 Eagle Talon (SOLD)
72' SuperBeetle
72' Standard Beetle
56' Deluxe Beetle

____________________________
HAD: '98 Eclipse RS

HAVE: '04 Grand Prix GTP Comp G

"you know what, I hate to admit it, but I had the exact same problem the first time I attempted a compression test on my car. I even made a thread on it, much like this. No one could figure it out.

Until I held the clutch down while turning the key."

OWNED imo.

Hahah, happened to me too when I was trying to jump my friend's car... connected the cables, then went to turn on my car and WTF MY BATTERY'S DEAD TOO! So he comes over and says dood.. why are you pushing in the brake. Laf. Uhh... sharing time is over imo.

he he, the same thing happened to me the first time(forgetting to hold the clutch)

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2003.5 M3
99 M3
99 GST