4AGE ignition problem
07-30-2007, 01:04 PM
Post: #1
4AGE ignition problem
Hi!

I need help. I have a 4AGE engine corolla. This runs like a 2-cylinder and 3-cylinder engine. This is alternating
periodically. The spark plugs and cables are good. I can rise the rpm to 6000 smoothly. But if I push the
accelerate fast, the engine's always knocking. I've already check the Ne and G signals. They look good, but I don't
know if the timing is good or not. The ECU sends the IGt signal to the igniter, but the IGf signal is not perfect.
This should be like a "shark-fluke". It has, but this is about 1V amplitude and it has a 12V square-wave at the falling-edge.
I can send picture if you send me e-mail address to my [email protected] mailer.

What can I do or check?

Sincerely,

Istvan Torma from Hungary
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07-31-2007, 10:04 AM
Post: #2
4AGE ignition problem
If the engine is knocking (= pinking) then your ignition is too far
advanced for the octane rating of your fuel. Retard the timing until
the knocking goes away. Then see what symptoms remain.

Cheers... jondee86

The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore, all progress
depends on the unreasonable man.
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