94 4runner not getting spark
#1
94 4runner not getting spark
I have a 94 4runner w/ 3.0 v6 4x4. Its not getting spark at all but will turn over sometimes. We've tried the battery, igniter, coil pack, distributor, plug wires, spark plugs, and tested all wires for power along with checking all fuses and relays and ecu. I'm out of ideas. Please help!
#4
Registered User
sometimes codes are stored in the ecm that dont trigger the cel. All you need to read codes on our trucks is a paperclip in the diagnosis ports. I believe its e1 and te1 to jump and then the cel will flash,
#10
Registered User
iTrader: (-1)
Set the ignition timing and adjust the valves.
*edit* reading fail. can't do a proper timing setting if it doesn't start. You can adjust the valves and verify the cam timing for a place to start.
Last edited by Co_94_PU; 01-27-2013 at 10:24 AM.
#12
Registered User
iTrader: (-1)
Guessing you mean the cam timing? Not as easily as a 22re..
Pages Eg2-34 and Eg2-35, actually the whole section but the timing marks are on those pages.
And the v6 doesn't have adjustable rockers. (newbie mistake on my part I don't have v6..) It uses shims (not sure if these come in different sizes, someone will be along to correct me I hope..). Basicly you can't have the problem where the adjustments are wrong and the valves aren't sealing.
Manual pages Eg2-74, covers reinstalling the valves and shims.
Which means if the cam timing is correct and the distributor is in the correct position, you should have spark at the right time atleast while the starter is turning.
There are a few reasons you could get intake fires with correct timing, the worst of which is a stuck/bent valve.
And you didn't answer my question.
If you can't point to a "this was obviously bad and replaced" You're wasting your time and money throwing parts at it. You've replaced the sensor(distributor) and the computer, but did you test either one or the wires inbetween the two?
Pages Eg2-34 and Eg2-35, actually the whole section but the timing marks are on those pages.
And the v6 doesn't have adjustable rockers. (newbie mistake on my part I don't have v6..) It uses shims (not sure if these come in different sizes, someone will be along to correct me I hope..). Basicly you can't have the problem where the adjustments are wrong and the valves aren't sealing.
Manual pages Eg2-74, covers reinstalling the valves and shims.
Which means if the cam timing is correct and the distributor is in the correct position, you should have spark at the right time atleast while the starter is turning.
There are a few reasons you could get intake fires with correct timing, the worst of which is a stuck/bent valve.
And you didn't answer my question.
"Black magic" or did you do something specific to get the spark back?
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