Cars cost too much.
Urgent help please!
Well.. It all starts with the o2 sensor mod... Ended up frying the earth wire on that and now the car doesn't start sometimes.
When it doesn't start it doesn't get anything. It just gets a simple tick sound and thats it. No crank, no fuel pump priming. Lights all work and havent dulled.
I have tryed a new ECU but no success...
Battery is 2 years old, fuel pump is atleast 3 months old.
Check the fusible links which are located under the bonnet in a small box thats down in front of the fuse box.The middle or main 60 amp fusible link has a small bolt underneath it that holds it in place in its holder, so this bolt has to be removed before this link can be pulled from its holder,the others just pull straight out of their holders...It sounds like you have earthed the wrong wires,earth wires usually wont "fry"
Cars cost too much.
Well, it was on there for about a month then this happens..
What do the fusible links look after?
It wouldn't explain it's tempramentalness...
VRHLDN
Solenoid on the starter motor may be on its way out.
Ok,I though it might have happened just after you did the earth mod,but if its been there for a month, then it started having problems,then it wont be fusible links or whatever..Maybe check that the battery terminals arent dirty etc.
Cars cost too much.
They looked fine when we jumped it..
It still might be worth removing them and giving them a quick clean.You never know,there could be a bit of a bad connection there somewhere....Originally Posted by Wombles
Donating Member
Wombles, its strange that its happened a month after the mod. has there been any upgrades or stereo changes, anything electrical?
what part of the wire fried? whole thing or at end where the ecu is?
any codes logged?
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Wanted: VR/VS Standard Rear Bumper Bar - Can be damaged - PM me if you have one
Cars cost too much.
Mmk.
But would that cause it to be temramental and, one morning/night click the next it starts?
My step brother had pretty much the exact symptoms that you have described, When it doesn't start it doesn't get anything. It just gets a simple tick sound and thats it. No crank, no fuel pump priming. Lights all work and havent dulled.
After weeks of trying to work out what was wrong as his car was tempremental and would work for days then just play up with no real warning/reason. I was almost ready to give up after changing ecu, starter motor and heaps of other small things and I happened to have a spare bcm and keyhead. Put that in his car and it fixed his lack of starting problems.
It was 1 of the most frustrating things to try to diagonise
Hope this might help you out
Ek wagon 0-60mph 6.19 20/4/07 G-Tech so there is no cheating1/8th mile @ mph Unknown , estimated 1/4 mile Unknown
on holiday
if the earth wire of the sensor instantly flashed the insulation off when starting the car ide check the main engine earth wire to the battery from the block it may have come loose and youve earthed the starter current via the o2 sensor earth about the only possible scenario i can think of if you followed the how too guide
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
Cars cost too much.
No codes, Only changed o2 sensors and the whole earth wire fried.
The barrel isn't that old on her though.. Hopefully it's not that..
I'll check that out now.
Thanks guys for the help!
The barrel isn't that old on her though.. Hopefully it's not that..
Im not saying it is the barrel. I mean the body control module and keyhead
Ek wagon 0-60mph 6.19 20/4/07 G-Tech so there is no cheating
Cars cost too much.
Keyhead?
It trys to turn over but hasn't got enough power..
Could it be the soliniod?
Where is the earth located on the motor?
Gave up on VL's
Sound like it’s either the battery/alternator has an issue or the starter motor... If it starts when it gets a jump then it is the battery or alternator.
Mate Id be definitely be checking out what delcowizzid has said in his above post.Its the only explaination as to why an earth wire would fry.
Banned :P
+1 for what Delco said,
A few things to try and can eliminate other possibilites (Always diagnose the problem by 100% eliminating things)
As for if it is a BCM or keyhead issue, while the BCM can fail it can fail in several ways, to eliminate whether it is the security side of things, insert your key, leav on acc (Where the key sits when the car is running) for a bit over an hour, if the car starts I would look at ensuring a good connection between the little metal ball on your keyhead and the metal strip on the barrel, then of course the wiring from that strip all the way to the BCM.
If it does not start at all you know that it is not a BCM to keyhead security issue BUT the BCM can still be stuffed.
It is easier to test components and circuits one by one in order of most likely to cause the issue to least likely than to go replacing parts at random untill you get a winner.
Better luck with lotto sometimes :P
P.S Get a multimeter and start probing and testing for continuity between all affacted circuits. (Be carefull though sometimes a circuit will have continuity but it wont be enough for said compononet to work, EG a bad or dirty earth)
Cars cost too much.
Well, earlier I tryed hot wiring the car kinda via the starter solinoid, heard the fuel pump but there was no cranking. The ignition was on..
The BCM wouldn't just stop working would it?
Cause before this it was fine..
The wire fried when we were jumping it..
I'll try tapping the solinoid to see if it's stuck..
Donating Member
ok, this piece of info wasnt posted before!! when you jumped her, did you have the neg to the battery or the body?
Im with delco on this one, sounds like your earth isnt well!
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Wanted: VR/VS Standard Rear Bumper Bar - Can be damaged - PM me if you have one
Banned :P
Another thing to note is that BCM modules are allot easier to blow up then people think, once I dropped a spanner and it landed on the battery across both terminals, BAM needed a new BCM and two new keyheads.
When I pulled the BCM apart several tracks had blown on the circuit, was a mess.
Any way as above it is 99% an earth issue, lucky you.
Cars cost too much.
Ok, well I tryed a new starter, it trys to turn over, just doesn't have enough power.
Headlights off, it trys once and then nothing.
Headlights on, it trys multiple times but but get far as it's really sluggish.
Had a mate try and jump it and got same result.
It seems to suck a lot! of power when turning over.
Ephect, the neg was to the battery..
on holiday
something wrong with your negative we fitted one on the altered drag car the other day was a great looking earth cable but as soon as i hit crank the engine earthed via wait for it the braided fuel lines they instantly glowed red hot was the quickest and most direct path to earth luckily it didnt catch fire
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
Donating Member
remove the earth wire from the batt to the body, and clean both the contacts on the cable and body, and give it another shot
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Wanted: VR/VS Standard Rear Bumper Bar - Can be damaged - PM me if you have one
Cars cost too much.
Found it...
There's two cables that go to the earth on the bettery terminal. One of the cables crimp was half broken and the wires were almost falling off the terminal.
Note to self... Work in the sun!
Donating Member
ah good to hear you got it sorted.
did you end up repairing the earth from the ecu?
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Wanted: VR/VS Standard Rear Bumper Bar - Can be damaged - PM me if you have one
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