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99 Chevy Metro won't rev up; Engine revving/power issue
Topic Started: Sep 29 2017, 01:12 PM (1,177 Views)
freegeo
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Have you checked fuel pressure?
Edited by freegeo, Sep 30 2017, 06:16 PM.
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Metromightymouse
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Powdercoat Wizard

Session801
Sep 30 2017, 04:37 PM
ptcapboy
Sep 30 2017, 04:14 PM
was there a woodruff key on the crank? did you put it back?
No I don't believe there was one. If I remember right, the key is built in. I know it only went on one way.
Not built in, but if it was there and not torn up then it's all good.
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freegeo
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The device you are using to check the codes, can it also read live data? Like coolant temps, open and closed loop?
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freegeo
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You can check the timing but it is not adjustable.
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Session801
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[ *  * ]
Ok, new development.
It appears that the number 1 spark plug is not firing. Or rather, there's no power between the coil (on top of the number 4 plug) and the number 1 plug.
The wire is good, so I thought perhaps it was the ignition coil.
Picked-up a new one and popped it in, and still no power between the coil and the number 1 spark plug.
Tried swapping the coils, and same thing.
There seems to be an issue somewhere down the line from the number 4 spark plug.

Does anyone know where to find a pin out diagram of the ignition coils? (1st & 4th cylinders)
The diagram in My Haynes book is not very specific.
Looking for the correct voltages.
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freegeo
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I can try and look it up after I get home.
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suzukitom
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Tom

Quote:
 
It appears that the number 1 spark plug is not firing. Or rather, there's no power between the coil (on top of the number 4 plug) and the number 1 plug


I thought the 2 coils on a 4 cylinder Metro were on #1 and #3? Oops. Never mind

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Edited by suzukitom, Sep 30 2017, 11:15 PM.
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suzukitom
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Tom

You might find it useful to check this test from the site where the picture above was from.

http://easyautodiagnostics.com/suzuki/1.3L/ignition-coil-tests-1
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freegeo
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Looks like suzuki toms link is correct.



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Edited by freegeo, Oct 1 2017, 12:04 AM.
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freegeo
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If you are having ignition problems, or poor spark. That could be the reason for the O2 sensor code. Staying rich due to unburnt gas.
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Session801
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[ *  * ]
After checking with an inline spark tester, there is an initial spark that goes through when I first start it, but then nothing.
As if the coil stops getting power after ignition.

Looks like neither the #1 nor #4 are getting any power after ignition.

Perhaps the Power Control Module is no bueno? :-/ :banghead
Edited by Session801, Oct 1 2017, 02:07 PM.
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Metromightymouse
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Powdercoat Wizard

I would start with removing the oil pan gasket and use rtv only.
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geogonfa
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Just another question...did any of the teeth get broken on the crank gear?...
good one...

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bad one...

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freegeo
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With out knowing if the pcm is seeing a good signal from the crank position sensor, I would not bet on the pcm being bad. The signal from the ckp sensor is what the pcm uses for fuel and spark control.
Edited by freegeo, Oct 1 2017, 04:11 PM.
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Session801
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geogonfa
Oct 1 2017, 03:06 PM
Just another question...did any of the teeth get broken on the crank gear?...
good one...

Posted Image

bad one...

Posted Image

Oh my gosh. Just checked it again. It is a little beat up. There's a tooth missing, and one is a little bent.
:O :hmm

I would assume that the gear from a 3 cylinder model is not the same?
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