Hello, I’m new here, I have a problem with my 91 Fj80, I have no spark. I have on the coil pack G/B wire 12.5 volts, on the B/W wire I have the same voltage, why?. I check cables to EFI relay and have 12.5 volts, buy new distributor, buy new igniter. And nothing, I got power in the fuel pump, CEL Working with the switch, no CEL driving it. Any help from you guys will be good. Thanks.
No spark (1 Viewer)
- Thread starter elayn77
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
More information needed.
Was this car fine one day and dead the next with no hands touching anything?
Please provide background information leading up to the problem.
Because you're checking voltage on 2 sides of a coil. A coil is a very long piece of wire wrapped around a core.
You should be checking resistance across the coil, not voltage.
Last edited:
Code 12 points to the distributor: no NE or G signal to ECU while cranking=no spark
Code 24 is the IAT signal from the AFM-engine should still run but A/F ratio will be wrong.
Code 51 could be several things, but nothing points to the AFM for that code.
- Thread starter
- #6
So it can be out of time? or just the distributor went out? I check the little coils inside the distributor and the ohms, I got was 240 on both. Now I don’t know if I’m reading it wrong or no, thanks for your help.
Is that an OEM distributor?
Spec for the pick up coils is 140-180 ohms. I don't know how that would effect the ECU.
Also, make certain the ECU is "seeing" the distributor. Connector E4 pins 4, 18, and 17.
- Thread starter
- #8
Thanks, so how I check for signal in the ECU just trace thecables
- Thread starter
- #9
Hello me again, I have the original distributor and a aftermarket, both show me the same reeds 222 ohms. On G and NE.
I would hook up the distributor and put a meter on the ecu connector and read across the coils. It should read very close to what you read off the distributor directly.
- Thread starter
- #11
Ok, what I read on distributor by itself, I read it on pin 4,17,18 on ECU connector, I check the rotors spins. It got timing correct
Then put it all back together, pull the 15 amp EFI fuse in the under hood fuse box for about 15 minutes. This will clear out any old stored codes and force the ECU to relearn all the sensors.
Maybe you're chasing an old code.
- Thread starter
- #13
Nothing, is driving me crazy, not start, check codes back again 12 and 51. What other thing I can do.
It might be time to swap in another known good ECU.
- Thread starter
- #15
Ok today I’m going to buy a new one to see if it works, it will take like a week to be delivered, here on South Carolina, and probably buy a harness or no, if someone have one ECU near Grenville S.C to buy it, i will buy it. Thanks for your help. I’m really appreciate.
- Thread starter
- #16
I’m wondering if the fj62 ECU works on mi Fj80.
Keep in mind that the FJ80 ECU has been discontinued from Toyota for quite some time now. Anything you get will be a used unit, and I would suggest contacting some of the used parts dealers here on mud for a "known good" part rather than someone outside of the community.
There are some pin out differences between the 62 and the 80 ECU. I don't know if that would work.
FJ62 ECU 89661-60020
FJ80 ECU 89661-60090
There is an online store that I just found that looks interesting, but I don't know if the unit is in stock. These guys also offer a "loaner program" for diagnosis at a reasonable cost.
www.autoecmstore.com
8966160090 | ECM (Engine Control Module) for a Toyota Land Cruiser (1991 1992)
This is a refurbished ECM for a Toyota Land Cruiser that is like new. Included in this price is a $100 refundable core deposit.
www.autoecmstore.com
Looking back over this thread, you never answered my first question in post #2, so I'll ask you again.
More information needed.
Was this car fine one day and dead the next with no hands touching anything?
Please provide background information leading up to the problem.
More information needed.
Was this car fine one day and dead the next with no hands touching anything?
Please provide background information leading up to the problem.
