Skip the auto shop - Our mechanics make house calls

Q: Dynamic Timing Not Working

asked by on

I have a 85 Toyota Celica. I've shorted out the T and E1 of the dynamic timing and set it to 5 degrees top dead center. In theory, when I pull the wire out, it's supposed to go to 12 degrees but it's not. It doesn't move at all. What is the solution? (I must get fix this issue in order to pass a part of the California smog certification.)

Thanks in advance for your help.

When adjusting the ignition timing you should have the engine warmed up. Jump the E and T terminals in connector near firewall and adjust the ignition timing to 5 degrees btdc and then remove the jumper. You should see timing jump when you accelerate the engine. If you do not see any movement then you will need to have the pinpoint tests done to see if it is in the computer or distributor that is causing the problem. This test is very long and requires the pinpoint test sequence to follow precisely. If not you may replace good components. I recommend this test be done with the manual or a mechanic like one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I have a 85 BMW. Lost of shake and vibration in 3rd gear at 2k rpms roughly

Hi there. You might want to purchase a service and repair manual for your BMW and follow their guidelines on removing the rotor. Unfortunately, we are only able to complete OEM repairs and service - so it might be a...

Q: What are your options during a call on the hands-free system?

While you can use the hands-free system in your car to answer or decline calls, you can also do a number of things while you’re in a call depending on what you want or need to do. Here’s a quick...

Q: My car would not go when I pressed the gas .

For certain, your engine shut off abruptly, never a good thing. Although you don't mention how many miles are on your Explorer, there are any number of possibilities for this behavior, including: engine timing chain failure, ignition module failure, fuel...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...