Setting the time on a 97 LX450

[Ariel Garcia]

Hello Fellows,

I been trying to set the timing in my LX450, but once I bridge the 2 pings in to the diagnosis connector the RPM in not changing. All possible solution are welcome.

 

[Comet]

Bridge pins. Loosen bolt on distributor, hook up timing light on 1st cylinder and battery to power the light. Start truck (making sure said timing light wires aren't anywhere near the fan or belts. Shoot light at crankshaft, noting where you see the hash mark dancing. Move distributor to set proper timing. Turn off engine, tighten bolt on distributor. Start truck, check that timing is set, turn off, remove the wire jumper, shut hood, enjoy #6.

 

[clx16]

Hello Fellows,

I been trying to set the timing in my LX450, but once I bridge the 2 pings in to the diagnosis connector the RPM in not changing. All possible solution are welcome.

Bridging the pins on my LX450 didn't put mine in manual mode either for timing. My steps were the same as Comet mentioned above. Runs ok for me now, but will revisit at some point.

 

[bajaphile]

Ensure the engine is up to operating temp. To be honest, it is pretty hard to hear/see the difference in RPM when you bridge the pins.

You can verify by using the timing light. If the ECU doesn't have the jumper in it, you'll see the timing is much more advanced. With it jumped, the timing goes down to about 5-10°. Or did you already check this?

Does your check engine light illuminate temporarily when you start the truck?

 

[Ariel Garcia]

Hello to all of you,
I did most of the suggested ways, but still I did not see any RPM reduction. I have the motor running at 3° now so I think I will leaved in this way unless anyone else suggest something different.
Thank you all for the advises I really appreciated

 

[Ariel Garcia]

Ensure the engine is up to operating temp. To be honest, it is pretty hard to hear/see the difference in RPM when you bridge the pins.

You can verify by using the timing light. If the ECU doesn't have the jumper in it, you'll see the timing is much more advanced. With it jumped, the timing goes down to about 5-10°. Or did you already check this?

Does your check engine light illuminate temporarily when you start the truck?

Thanks for replaying back, I did check for the light, but results are negative.

 

[clx16]

My Engine light didn't come on temporarily either when i jumpered mine. It was a couple weeks back that I put in a new distributor and had the same results as you during the attempt to time it. I will try to check my timing this week, I had my battery out all last week while I was upgrading alternator so I think my ECU is still re-learning.