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1997 Honda Odyssey problem with injector #1

Tiny
DRACO30
  • MEMBER
  • 1997 HONDA ODYSSEY
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 170,800 MILES
Hi I need some help. I got a honda odyssey 1997 4cyl. The problem is the cylinder #1 seems to not work I change the fuel injector thinking it was that I put new spark plugs new wires new distribuitor cap, I adjust the valves to specs and still the problem persist.
i swap injector plug from 1 to 2 and the injector works but I put it back to 1 and still the same.
other thing I try is turn the car on and while is still on unplug injector 1 the car stay the same.
then I unplug injector 2 and move injector 1 plug to 2 and 2 works so im stuck and dont have no more ideas please anyone point me to the right dirrection. Thanks in advance
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Friday, April 10th, 2009 AT 4:57 PM

12 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi draco30,

Thank you for the donation.

Did you test the compression?
Is the spark plug dry or sooty when removed?
Are there any oil or carbon buildup on # 1 plug?
Did you test if there are any spark at end of wire?
Is the Check Engine Light showing?
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Friday, April 10th, 2009 AT 5:35 PM
Tiny
DRACO30
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I didnt check compression, but the spark plug looks a little wet, no oil or carbon buildup. I did check for spark at tthe end of the wire and I have spark check engine light only light up with the swicth on with engine running it stay off.

Im thinking on the fuel regulator but I dont think the regulator wont do that on just one ingector. Im hoping someone can help me im going nuts on this problem. Thanks in advance
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Friday, April 10th, 2009 AT 9:16 PM
Tiny
DRACO30
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I was thinking it could be a pcm fault? What normaly is the symptoms of a faultly pcm?
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Friday, April 10th, 2009 AT 11:06 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
PCM fault can be anything. I would suggest testing the compression first. PCM are rather hardy items and seldom give way.

In your case, if it is the PCM fault, it would not be triggering the fuel injector. Unplug injector wire and attach a test light across the terminals. Start vehicle and see if the light is working. Normally the PCM would show on the Check Engine Light if such a fault exist.

Btw do you have voltage on one of the terminals when ignition is turned to ON?
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Saturday, April 11th, 2009 AT 7:19 AM
Tiny
DRACO30
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  • 8 POSTS
Yes the plug on injector #1 has voltage. How do I check compression on this engine? I can get the compression gauge on the the plug is too deep to reach. Well I give a try.
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Saturday, April 11th, 2009 AT 10:11 AM
Tiny
KHLOW2008
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Some compression gauge has an extension that can be screwed in.
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Saturday, April 11th, 2009 AT 11:03 AM
Tiny
DRACO30
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  • 8 POSTS
Well I replace fuel pressure regulator and swap injectors. The only thing I didnt replace was the ignition coil you think it could be the coil?

Anyway im gonna loan a compression tool. My other question is whats the compression ratio for my car should be? Thanks in advance
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Saturday, April 11th, 2009 AT 4:45 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
If it is the coil, it would affect all other cylinders as it is shared by them.

Hee are the details for the compression.


https://www.2carpros.com/forum/automotive_pictures/192750_Compression97Odyssey_1.jpg

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Saturday, April 11th, 2009 AT 9:48 PM
Tiny
DRACO30
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Well this is my readings on the cylinders
#1 is 60 #2 is 135 #3 is 135 #4 is 130
i put some motor oil on #1 after my first reading and the gauge on the tester goes crazy.
My question thats means is the piston rongs or the valves? Thanks for all your help.
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Monday, April 13th, 2009 AT 4:42 PM
Tiny
KHLOW2008
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  • 41,815 POSTS
If the pressure shoots up after putting in some oil, the rings are bad.

Valve leaks would result in not much changes if you do a wet test, ie after you put oil into the cylinders. Check the valve clearances.

If the engine had been left sitting over an extended period of time, the wet test might get the engine running and the problem might cure itself when the rings starts working again.
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Tuesday, April 14th, 2009 AT 6:45 PM
Tiny
DRACO30
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First thanks for all the help.
I did the repairs myself last weekend, I replace piston rings and rod bearings. But when I was about to get everyyhing back together I found out a bend exhaust valve just one on the #1 cylinder now im in a hunt for another cylinder head on the junk yards.
I know what you been thinking but I cant afford rectifing the head so I just got to go cheap. Thanks again for all the help.
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Tuesday, April 28th, 2009 AT 5:29 PM
Tiny
KHLOW2008
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You can just buy an exhaust valve and replace it. There should be no major damage when valves gets bent, unless damage is bad.

Btw if you do replace the valves, lap all the other valves and replace the valve seals, the work will make the engine last longer.
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Wednesday, April 29th, 2009 AT 10:56 AM

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