y7/y8 minime problems. compression test... please help
Thread Starter
Joined: Feb 2005
Posts: 160
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From: Tarboro, NC, USA
y7/y8 minime problems. compression test... please help
i just done a compression test.
results
cyl 1 - 120
cyl 2 - 110
cyl 3 - 110
cyl 4 - 130
the timing IS not right i believe unless its the compression thats making the car cut off at a stop when i give it gas.
ALSO i dont think i disabled the gas some one told me to just take out the ECU fuse and BACKUP fuse but i smelt gas strong so a question is
1. if it still sprays gas will that be the reason the compressions so low?
2. is ths compression abnormally too low? (im pretty sure it is)
3. what would make my compression low on ALL 4 cylinders like that and its a new headgasket with copper spray... will the timing affect the compression?
results
cyl 1 - 120
cyl 2 - 110
cyl 3 - 110
cyl 4 - 130
the timing IS not right i believe unless its the compression thats making the car cut off at a stop when i give it gas.
ALSO i dont think i disabled the gas some one told me to just take out the ECU fuse and BACKUP fuse but i smelt gas strong so a question is
1. if it still sprays gas will that be the reason the compressions so low?
2. is ths compression abnormally too low? (im pretty sure it is)
3. what would make my compression low on ALL 4 cylinders like that and its a new headgasket with copper spray... will the timing affect the compression?
Honda-Tech Member
Joined: Mar 2004
Posts: 576
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From: PA, US
Re: y7/y8 minime problems. compression test... please help (ncskate)
1. Take the ECU fuse out.
2. Unplug your injectors.
3. Hold the throttle wide open.
4. Crank the engine a couple of times and make sure you do each one the same
amount.
5. Tell us those results.
2. Unplug your injectors.
3. Hold the throttle wide open.
4. Crank the engine a couple of times and make sure you do each one the same
amount.
5. Tell us those results.
Honda-Tech Member
Joined: Nov 2004
Posts: 1,650
Likes: 0
From: 253, WA
Re: y7/y8 minime problems. compression test... please help (spoonek9)
crank it 5 times each cylinder. pulling out the 15a fuse should have disabled the fuel. When you pulled the 15a fuse and then twisted the key one click, did you hear the fuel pump turn on?
Thread Starter
Joined: Feb 2005
Posts: 160
Likes: 0
From: Tarboro, NC, USA
Re: y7/y8 minime problems. compression test... please help (Plugg'd)
been gone all day just got back my friend took the tester so i cant try it tonight no the fuel pump didnt come on after i took out the fuse but i imagine i still had fuel in the lines i forgot about so that probley got in...
Also i couldnt get the car to crank and idle for some reason (been have timing issues) so i couldnt let it warm up ne one thing that would make it read lower or what? im going to do another test tomorrow/this weekend when i get paid ill buy a guage
Also i couldnt get the car to crank and idle for some reason (been have timing issues) so i couldnt let it warm up ne one thing that would make it read lower or what? im going to do another test tomorrow/this weekend when i get paid ill buy a guage
Thread Starter
Joined: Feb 2005
Posts: 160
Likes: 0
From: Tarboro, NC, USA
Re: y7/y8 minime problems. compression test... please help (Plugg'd)
this might be a dumb question but....
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Plugg’d »</TD></TR><TR><TD CLASS="quote">crank it 5 times each cylinder. </TD></TR></TABLE>
by crank 5 times u do mean hold the key in the crank position while the motor turns over 5 times, not to actually turn the key try to crank and stop and do it again 5 times right? just clearing it up becasue ive been just letting the motor crank loop 4 times
and i figure thats the right way but mayb i need to hold it alil longer
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