88 3.0 will not start - Code 14
#1
Registered User
Thread Starter
88 3.0 will not start - Code 14
This is going to be long, well all of a sudden my truck will not start and im getting code 14 (engine just cranks and cranks). it left me stranded and my dad had to tow me home.
So we were going to use the trouble shooting guide off of the 93 FSM site, but that's just it. its a 93, VERY different from an 88. the ECM plugs are not hte same, so i dont know which is which.
So we got out our Vintage 1990 Haynes manual and started to troubleshoot the ignition.
first up was the ignition coil. we first connect our DMM to the two posts on hte coil to measure Resistance. the manual calls for 0.5 to 0.7 Ohms and we are getting 0.8, close enough. next was hte secondary coil resistance test. the manual calls for 10.2K to 13.8K Ohms and we are getting 16.8K Ohms, again close enough.
Next it wanted us to do the distributor air gap test. the book calls for between .008 to .016 we are getting somewhere inbetween so that is good.
After that the signal generator was next. the book wants you to check the Resistance between terminal G- to each of the other 3 terminals. it wants any where between 140 and 180 Ohms. we are getting 160 Ohms across all 3.
We are at a loss here guys. we dont know what to do. since we dont have an FSM to check my 88 ECM we cant do all the tests we need to do.
Sorry for the long post guys, we could really use yalls help.
thanks.
So we were going to use the trouble shooting guide off of the 93 FSM site, but that's just it. its a 93, VERY different from an 88. the ECM plugs are not hte same, so i dont know which is which.
So we got out our Vintage 1990 Haynes manual and started to troubleshoot the ignition.
first up was the ignition coil. we first connect our DMM to the two posts on hte coil to measure Resistance. the manual calls for 0.5 to 0.7 Ohms and we are getting 0.8, close enough. next was hte secondary coil resistance test. the manual calls for 10.2K to 13.8K Ohms and we are getting 16.8K Ohms, again close enough.
Next it wanted us to do the distributor air gap test. the book calls for between .008 to .016 we are getting somewhere inbetween so that is good.
After that the signal generator was next. the book wants you to check the Resistance between terminal G- to each of the other 3 terminals. it wants any where between 140 and 180 Ohms. we are getting 160 Ohms across all 3.
We are at a loss here guys. we dont know what to do. since we dont have an FSM to check my 88 ECM we cant do all the tests we need to do.
Sorry for the long post guys, we could really use yalls help.
thanks.
#4
Getting fuel? Plugs wet?
Getting spark? Pull a plug and ground it to see.
timing belt failed?
fuel pump quit?
You can shoot some wd40 into the intake, through one of the vacuum ports on the passenger side, to see if it tries to crank. If so, got a fuel problem.
Could be a bad coil inside distributor.
Fuses all good?
Just some ideas.........
Getting spark? Pull a plug and ground it to see.
timing belt failed?
fuel pump quit?
You can shoot some wd40 into the intake, through one of the vacuum ports on the passenger side, to see if it tries to crank. If so, got a fuel problem.
Could be a bad coil inside distributor.
Fuses all good?
Just some ideas.........
#5
Registered User
Thread Starter
yes, it is getting fuel. We are not getting spark, whenever we pull a wire off a plug, there is not spark. dont know what my dad did, but there is definately no spark.
when you say the igniter. do you mean the little gray/silver box sitting on top of the coil?
when you say the igniter. do you mean the little gray/silver box sitting on top of the coil?
#6
Registered User
Thread Starter
Getting fuel? Plugs wet?
Getting spark? Pull a plug and ground it to see.
timing belt failed?
fuel pump quit?
You can shoot some wd40 into the intake, through one of the vacuum ports on the passenger side, to see if it tries to crank. If so, got a fuel problem.
Could be a bad coil inside distributor.
Fuses all good?
Just some ideas.........
Getting spark? Pull a plug and ground it to see.
timing belt failed?
fuel pump quit?
You can shoot some wd40 into the intake, through one of the vacuum ports on the passenger side, to see if it tries to crank. If so, got a fuel problem.
Could be a bad coil inside distributor.
Fuses all good?
Just some ideas.........
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#8
If I remember correctly, there is a coil in the distributor that sends a variable sine wave to the ECU. However, Toyotas are notorious for the ignition module going open despite ohm readings. There is a transistor in there that fails. Get another ignition module, flat gizmo next to coil, and plug it in. Bet you the cost of the part that's it.
#9
Registered User
Thread Starter
We opened up the ignitor and it appeared to just be 5 wires that are soldered then come out of the box. from there they run to a green plug. whenever i order a new one does it come with this connector?
Is this a dealer only part, or can i get it at Advanced?
thanks death
#10
dont go dealer or advanced. Get it from a wrecking yard. When you do, it comes with the coil as an entire assembly, and aits all plug and play.
that aftermarket junk usually requires modifications, and splicing, and the dealer wants an arm and a leg for it.
I did a local check for yards in GA, and there appears to be none that I could find with that part. However, check car-part.com there are a ton listed. Just make sure they match part numbers to yours, and include the coil as an assembly. And I would suggest buying one that says it is tested, even if it is a little more. A little peace of mind is worth a lot.
that aftermarket junk usually requires modifications, and splicing, and the dealer wants an arm and a leg for it.
I did a local check for yards in GA, and there appears to be none that I could find with that part. However, check car-part.com there are a ton listed. Just make sure they match part numbers to yours, and include the coil as an assembly. And I would suggest buying one that says it is tested, even if it is a little more. A little peace of mind is worth a lot.
#11
Registered User
Thread Starter
dont go dealer or advanced. Get it from a wrecking yard. When you do, it comes with the coil as an entire assembly, and aits all plug and play.
that aftermarket junk usually requires modifications, and splicing, and the dealer wants an arm and a leg for it.
I did a local check for yards in GA, and there appears to be none that I could find with that part. However, check car-part.com there are a ton listed. Just make sure they match part numbers to yours, and include the coil as an assembly. And I would suggest buying one that says it is tested, even if it is a little more. A little peace of mind is worth a lot.
that aftermarket junk usually requires modifications, and splicing, and the dealer wants an arm and a leg for it.
I did a local check for yards in GA, and there appears to be none that I could find with that part. However, check car-part.com there are a ton listed. Just make sure they match part numbers to yours, and include the coil as an assembly. And I would suggest buying one that says it is tested, even if it is a little more. A little peace of mind is worth a lot.
Thanks a lot man, hopefully this will help some more people that are having similar problems, because i couldnt find anything with the search bar.
#16
Registered User
Thread Starter
ya i was aware that it was not the same ignitor, i just wanted to make sure with you that that ignitor was for sure an 89 and it was not mis-marked.
#17
Registered User
Looks like I may be joining you in a hunt for a new ignitor soon. I've had a code 14 for a while, pulled the EFI fuse a few days ago, gonna check for it again tomorrow. Mine will still start, but I notice sometimes (very rarely) not on the first try.
#19
Registered User
The ohm-meter test for coils doesn't work. It can test good, but still not work.
Get both from a wreckers and plug them in.
#20
Registered User