SPONSORED LINKS

No spark

Tiny
NORUN4RUNNER
  • MEMBER
  • 1999 TOYOTA 4RUNNER
  • 3.4L
  • V6
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Replaced RCU with an ECU that has been flashed so that the transponder is disabled and the center ECU plug is not plugged in. I have replaced coils, wires, plugs, igniter and crankshaft positioning sensor still no spark. Checked with test light and everything gets power but no spark past coil.
SPONSORED LINKS
Thursday, September 27th, 2018 AT 5:27 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
These cars had a problem with the ignition ignitor but to be sure lets check for power and ground for the PCM. Here is a guide to help you confirm the issue and the engine wiring diagrams so you can see how the system works:

https://www.2carpros.com/articles/how-to-check-wiring

If everything looks good I would replace the igniter.

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, September 29th, 2018 AT 11:53 AM

Please login or register to post a reply.

Related No Spark Content

Ignition Spark Check
GUIDE
Ignition Spark Check
An engine's ignition system is responsible for igniting the fuel-air mixture inside the combustion chamber and when the ignition process stops the engine will not run....
VIEW MORE

Sponsored links