Random misfire in all 4 pistons ... thats the codes I got.

What I searched and learned

If the dizzy rotor wont spin by hand than it needs to be replaced. Mine wouldnt spin.
White powder on spark plugs means heat. Bought new plugs
Ohm levels on spark plug wires. Plug 4 was 13 , Plug 3 was 10, Plug 2 and 1 were 8.

What I replaced

Cap & Rotor
Spark Plugs

If the rotor still doesnt move, what does that mean?
Will the plug wires still need replacing?
Plug wires, could that be the real problem?
What else could it be? The whole dizzy?

TIA
Slow99SI

 

Sounds like you might need a new ignitor. Also the rotor only went on one way right? If not and when you take the screw out and you could spin it flip it 180 and put it back.

Remember the spark pattern:

34
12

4321

 

yeah i got the firing order down right, I checked that right away.

Thanks, i will check the ignitor

anything else is appreciated

 

plug wires are often the culprit when it comes to those misfire codes. I would replace them first and then take a look at the ignitor if all else fails.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slow99si &raquo;</TD></TR><TR><TD CLASS="quote">Random misfire in all 4 pistons ... thats the codes I got.

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What year and model? Any mods?

 

99 SI

I/E/H
pulleys
fuel rail, reg, and pump

the ignitor coil didnt read when i check the ohm's on the positive wire to the ignitor spring ... the book said to replace it ...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slow99si &raquo;</TD></TR><TR><TD CLASS="quote">

the ignitor coil didnt read when i check the ohm's on the positive wire to the ignitor spring ... the book said to replace it ... </TD></TR></TABLE>
An open circuit huh, that's a good place to start then.

 

replaced the ignitor and it still doesnt read anything ... the only thing i havent done yet is the wires.

what else is there?
what do u mean by open circuit?

im new to the whole motor work thing ...

 

o yeah , the garage smells like fuel ... i had a leak in a injector plug but it got fixed with a new plug/gasket around the injector ... im lost

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slow99si &raquo;</TD></TR><TR><TD CLASS="quote">replaced the ignitor and it still doesnt read anything ... </TD></TR></TABLE>
Weren't you testing the coil???

 

yea i replaced the ignition coil

page 5-6 from Haynes

it still doesnt read anything from the ohmmeter

 

hey i almost have the same problem with my car detecting a misfire in all 4 cyl when u figure it out tell me what you did.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slow99si &raquo;</TD></TR><TR><TD CLASS="quote">99 SI

the ignitor coil didnt read when i check the ohm's on the positive wire to the ignitor spring ... the book said to replace it ... </TD></TR></TABLE>

did you disconnected the wires? if you don't you will not get ohms it properly. what's the ohms reading at A and B terminal? and A and secondary?