Code 42

[Wombles]

Ok. So the title says. I got a code 42 (EST).
I dont get why I got it.
Only showed up cause I went to start it up and let go to early. Meaning I didnt let it ignite properly and it almost started but didnt..
Any ideas?

[seq4x4]

Are you sure it was just because of that, because a code 42 to is:

DTC 42:
IGNITION BYPASS CIRCUIT FAULT

There are two modes of ignition system operation: BYPASS mode, and ELECTRONIC SPARK TIMING mode. The Bypass mode is normally used while starting the engine, while the Electronic Spark Timing mode is used to allow the PCM to control the ignition system after the engine is running. The PCM controls a "Bypass control circuit", used to control the ignition module between the two different ignition system modes.
The PCM's Electronic Spark Timing (EST) output circuitry generates EST output pulses anytime crankshaft reference input pulses are received. The PCM also monitors it's EST output terminal, to monitor if and when EST pulses are present.

When the ignition system is operating in the Bypass mode (such as when the engine is cranking), the ignition module earths the EST pulses coming from the PCM. Because the EST pulses should be earthed through the ignition module during Bypass mode operation., the PCM should not detect EST pulses on it's EST output terminal.
When the engine is started, the PCM applies 5 volts to the Bypass control circuit. When received by the ignition module, this 5 volts control causes the ignition module to release the earth from the EST pulses coming from the PCM. The ignition module will then use the EST pulses to operate the ignition system. When this occurs, the PCM will correctly detect EST pulses at it's EST output terminal.

If the Bypass control circuit has as open fault or short to earth, or if the EST circuit has a short to earth or short to voltage, the PCM cannot control the ignition module to release the EST pulses from being earthed. Because the PCM also monitors it's EST output terminal for EST pulses, if it detects no EST pulses after it has "turned on" the 5 volts to the Bypass control circuit, and the engine speed goes above 1600 RPM, a DTC 42 will be set.

Test Description: Number(s) below refer to Step numbers on the Diagnostic Chart.

2.DTC 42 will set if:
Engine speed is greater then 1600 RPM.
PCM has detected no EST output pulses for 200 milliseconds.
4. This step checks to see if circuit 423 is shorted to voltage.
7. This step checks to see if circuit 423 is shorted to earth.
10. This step checks to see if circuit 424 is shorted to earth.
12. This step checks to see if circuit 424 is open.
13. This step checks to see if the ignition module is capable of switching from Bypass to EST mode.

Diagnostic Aids:
Poor connection at PCM. Inspect harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, and poor terminal to wire connection.
Damaged Harness. Inspect the wiring harness for damage. If the harness appears to be OK, disconnect the ignition module, turn the ignition "ON". Connect and observe a voltmeter connected between the Bypass control circuit and B+, while moving connectors and wiring harness related to the ignition module. A change in voltage will indicate the location of the fault.

[Wombles]

That was the first time its shown.
Thats the conclusion that I got. Cant think of anything else.
Ill have to look into it. Doesnt look like the fault has shown again. ..

[VS_Pete_1]

no news is good news lol
good luck