VS rough on start up, then fine

[OzJD]

This sounds like a little more than a dead remote battery to me

THEFT DETERRENT SIGNAL

To Test - Code 31
When the ignition is switched On, the ECU sends a signal to the BCM (body control module) or the TDM (theft deterrent module) to confirm that the correct ignition key has been used. When the BCM or TDM receives this signal, it permits operation of the starter motor and returns a signal to the ECU allowing operation of the fuel injectors.
The ECU will set code 31 if the BCM or TDM does not return a signal to the ECU to permit operation of the injectors. If the BCM or TDM does not receive a signal from the ECU when the the ignition is switched On, there will be a one second delay in operation of the starter motor after the ignition key is moved to the start position.
(1) Clear the fault code as previously described
(2) Attempt to start the vehicle. If there is a one second delay before the starter motor operates, proceed to operation (3)
If the starter motor operates as soon as the ignition key is moved to the Start position, an intermittent fault is indicated. Check all wiring and connections between the ECU connector terminal A8 (M/T), or teminal C11 (A/T) and the TDM or BCM.
(3) Switch the ignition On and check that there is 4-6 volts at the diagnosis connector terminal 9
(4) If 4-6 volts is not available, check the wiring between the diagnosis connector, the ECU connector terminal A8 (M/T), or terminal C11 (A/T) and the TDM or BCM for a short to earth or an open circuit. If no fault can be found with the wiring, renew the ECU.
(5) If 4-6 volts is available, a fault in the theft deterrent system is indicated. Refer the vehicle to an authorised dealer.

 

[ephect]

lol yes it does, so sundays the day ur checking this then?

 

[delcowizzid]

well ive got news they scanned my computer and its comming up saying i have no air sensor beause ive got the pod enclosure, they told me beacuse its not sending the message to the ecu saying its cold the injectors dont work as fast as there suposed to do, what it should be doing is sending a message to the ecu saying its cold n that the injectors shud be working fast to start right away, so gotta take it in sometime next week so they can sus it out more and find a way of putting a sensor in my intake somewhere

if the sensor is still plugged on to the wire it shouldnt say theres no sensor unless its dead.also i have just wired the sensor to the pod filter before in other cars so its at least getting somewhat close to the correct temp reading and had no issues. but as said above drill a hole in the inlet pipe and glue the bugger in with some good glue remember no silicon products or it will kill the O2 sensors.

 

[OzJD]

lol yes it does, so sundays the day ur checking this then?

I'm confused... who was that to?

 

[ephect]

I'm confused... who was that to?

lol that was to you..

This sounds like a little more than a dead remote battery to me

lol yes it does, so sundays the day ur checking this then?

u have a long list of things to check and i know sunday is ur day off and i was asking if sunday was the day that u would be going through the check list on ur code 31

 

[OzJD]

lol was gonna take a look this arvo, but instead im gonna go get tanked with the boyz (well, priorities... right?)

And you know Sunday's my day off? I own a small online business (JelTel - Finding you the best deal) so any day I want is my day off

Yeh there's soo much it could be.
I have this one, possible thought in my head. I don't know why but my brain refuses to dismiss it.
Is it possible that one of the pulleys are starting to seize, and the extra stress on the engine is causing it to behave like this (think of a generator when you chuck more power requirements onto it)... for the sake of taking the belt off, it's probably worth checking

By the way, it was the bit about checking it on sunday that had me confused. lol

and this:

BCM is responsible for the theft deterant signal, but its related to your keyhead. the battery is either on its way out, or the metal tab around the ignition barrel isnt making proper contact with the key contact. inspect and maybe give it a quick clean, or GENTLY bend them out a little more.

is what made me dismiss code 31

It sounds like everyone is taking a different direction in this thread, and I like the way it's going (even though we've all been unsuccessful so far).

 

[keygen]

for shits & giggles , try cutting the pink wires at the 02 sensor .

mine was running shitty & with a miss till i cut these .

 

[OzJD]

No new developments here, anyone else?

 

[WogBoyz]

nope this week ill be getting the Air Intake Temp Sensor fixed up and put in so hopefully that fixes my problem

 

[OzJD]

Still havn't had a chance to have a fiddle with mine (went on the Peoples Cruise #2 today).
Lol I hope I didn't mute ephect!