I just ran a compression test on my JDM H22 (STOCK) and these are the numbers: 183-111-111-180. this is going from left to right. does this sound right?

 

Not a good result if it was all done correctly. It could be something major, but I'm thinking it's a blown head gasket between cylinders 2 & 3 (someting major would be a cracked head/block between the two), that's why they both test at the same lower compression. The only way to really determine what's up is to do a leakdown. If you own a compressor (or have regular access to one) I'd suggest buying a tester, since it costs the same as paying a shop to do it for you. By doing a leakdown test you can determine what is the real cause of the low #'s.

 

Ok! i was reading more info on compression test and do i have to remove the fuse for the fuel? because i didn't do that?

 

If you're obd1 just disconnect the harness to the injector resistor box.

The fact that you didn't do that really won't affect the results it's just to keep you from flooding the cylinders with fuel while performing the tests. One thing to make sure you do while testing is have your throttle wide open, ie push in the gas pedal while you're cranking it.

 

thanks 2lude4u, for the info i will try it again

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2lude4u &raquo;</TD></TR><TR><TD CLASS="quote">If you're obd1 just disconnect the harness to the injector resistor box.

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If you do that you need to ground the secondary side of the ignition coil to reduce the risk of damaging the coil. It's easyier to remove the ecu fuse.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2lude4u &raquo;</TD></TR><TR><TD CLASS="quote">
One thing to make sure you do while testing is have your throttle wide open, ie push in the gas pedal while you're cranking it.</TD></TR></TABLE>
It's also reccomended to have the engine up to normal operating temperature. (if it runs)

 

hey H22a-civic is your jdm h22 running bad, like real boggy and hesitating?

 

not all the time but yes it has done it. why?