I replaced by cyclinder head and connected everything back together and now the engine has no spark. Could anyone give me any advice ..
No spark!!!!!
- Thread starter FJEighty
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
- Joined
- Jul 20, 2004
- Threads
- 274
- Messages
- 23,204
- Location
- Chandler, AZ
- Website
- www.tontorecreationalliance.org
What kinda car? With the key turned to run, is the CEL on?
- Thread starter
- #3
1991 LandCruiser. No CEL on. I have already replaced the EFI Main relay as well.
Does it crank but no fire? Does it just click? Have you checked your fusible links for continuity?
- Thread starter
- #5
cranks no fire
Here's a starting point:
http://www.sdsysdesign.com/tlc/images/Strife/3FE EFI Diag.pdf
http://www.sdsysdesign.com/tlc/images/Strife/3FE EFI Diag.pdf
- Thread starter
- #7
Everything checked ok
- Thread starter
- #8
I’ve read that the ECU might be bad. I’m going to check that next.
- Joined
- Jul 20, 2004
- Threads
- 274
- Messages
- 23,204
- Location
- Chandler, AZ
- Website
- www.tontorecreationalliance.org
With the key to run and no CEL, the bulb maybe burned out, or more likely the ECU is not getting power. No power to the ECU = not gona run.
- Thread starter
- #10
I’ve checked the the power going to the ECU getting 12v. I am replacing the ECU. I’ll let you know how it goes. Thanks everyone.
It is very rare for an ECU to be faulty.
I would look elsewhere.
I would look elsewhere.
- Thread starter
- #12
- Thread starter
- #13
Would like to confirm if Is this the fuseible link that need to be replaced. I’ve ordered the part form the dealer since my local Automative shops don’t carry yet.
Yes, that is the fusible link. You can remove them from the connector and the black box and test continuity. Without all three, the truck won't run. I had a very similar issue, cranks but no fire. I had a short on injector #5 that kept blowing the fusible link with the gray connector.
Before you install a new fusible link, look for any exposed wires or burned jackets. Otherwise the fusible link will just pop again and you've just thrown away $15.
- Thread starter
- #15
Thanks for confirming. I hope this solves the problem.
Yes, that is the set of 3 fusible links attached to the plastic junction box.
All the cool kids buy them from here:
Fusible Link for 80 Series Land Cruiser
Fuseable Link Junction Block for 80 Series Land Cruiser
Did you test them first?
From an older post:
A real basic test of the 3 fusible links:
FL1/AM1 (small ring terminal): if the dome lights work it's good.
FL2/AM2 (grey connector): if the CHARGE lamp lights when you turn the key to ON, then it's good.
FL3/FL MAIN (large ring terminal): if the brake lamps work when you step on the brake pedal, then it's good.
- Thread starter
- #18
- Thread starter
- #19
This forum kicks ass!! Thank you again everyone for all the help. My rig started for the very first time since I replaced the cyclinder head. Cheers!
- Thread starter
- #20
My next problem is my MAF. When I plug it in my engine turns off. Is my sensor bad?? It was left unplugged when I started the engine for the first time I didn’t notice to plug it after 5 mins. Than when I plugged it in truck died. Also the CEL will not illuminate.
But when I leave the MAF off the CEL comes on remains on engine starts. Please advice if I need a new MAF.
But when I leave the MAF off the CEL comes on remains on engine starts. Please advice if I need a new MAF.