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Cranking but not starting
Posted: Sat Dec 07, 2013 12:03 am
by Daniel2019
Rebuilt FTO's engine is cranking and trying to start but it won't kick over.
Everything is plugged in, has fluids including fuel.
Just seems to refuse to kick over and start.. any ideas?
We have put the auto ECU back in (blue plugs) just to cut that out as a cause. Have plugs in engine back for auto ECU but obviously nothing to plug them into. Have bridged the black wires so it thinks it's in P so it will start.
Still nothing..
Re: Cranking but not starting
Posted: Sat Dec 07, 2013 12:50 am
by Daniel2019
Do we have a fuse or relay for the fuel pump?
Couldn't find any in the diagrams.
Re: Cranking but not starting
Posted: Sat Dec 07, 2013 2:10 am
by destinationtoby
fuel pump might be fucked?
Re: Cranking but not starting
Posted: Sat Dec 07, 2013 3:23 am
by silverGPX
Just pour some fuel down the carby
Re: Cranking but not starting
Posted: Sat Dec 07, 2013 8:34 am
by Daniel2019
Pump works, we wired it up and used it to drain the old fuel.
Re: Cranking but not starting
Posted: Sat Dec 07, 2013 8:45 am
by dstocks
1. is fuel reaching engine? Even if pump is working, there could be a blockage in filter or somewhere else
2. are you getting spark?
I cant tell you how to test, but im sure someone can.
Re: Cranking but not starting
Posted: Sat Dec 07, 2013 9:07 am
by silverGPX
Is the map sensor plugged in
Re: Cranking but not starting
Posted: Sat Dec 07, 2013 9:09 am
by Daniel2019
Yes map sensor is plugged in.
dstocks that was my next thought. Was going to unplug the fuel lines and crank it to see.
Re: Cranking but not starting
Posted: Sat Dec 07, 2013 9:56 am
by PHIL069
Are you sure all your sensors are plugged in and plugged in correctly?
Remember Connor_1994's engine swap...
PHIL069 wrote:Connor_1994 wrote:okay, so, stupid me,
the throttle body and ignit5ion failure sensore, got them around the wrong way cause they are the only two plugs in the engine bay that are the same
then it was just a vacuum hose at the back of the plenum chamber which is why it wopuldnt idle,
but its all sorted now
Traced back to ignition falure sensor #4 pin, was also showing 5V
When I asked Connor for the wire colours going to the plug he told me 4 different colours than it was supposed to be
Connor then noticed that the throttle position sensor had the colours I was looking for
Went to my FTO and saw that the plugs were pluged in opposite to what they should have been
Asked Connor to swap the two plugs over and
the engine started..........but it failed to idle
Back out to my FTO and going over my sensors asking Connor to check what I was seeing............The sensor on the firewall, behind the intake manifold didn't have the vacuum hose connected, connected hose and
the engine idled
TPS = Yellow/Blue stripe + Red/White + Green/Yellow + Black
IFS = Black/White stripe + Black/White + White + Black
Re: Cranking but not starting
Posted: Sat Dec 07, 2013 11:14 am
by SchumieFan
I double checked the plugs vs the silver car next to it... they were all fine... Dan is currently driving to Brisbane for a week... I might go round his house Monday and double check a particular plug I thought looked dodgy
Re: Cranking but not starting
Posted: Tue Dec 10, 2013 5:52 pm
by Nacho
Hmmmm........deja vu. Ok well the bastard is cranking and is it almost turning over? As in you hear firing but won't continue?
If not, check fuel and check spark again.......
Open the throttle body and spray a little bit of carby cleaner in there. If the engine fires up normal and then dies when all the carby cleaner is depleted you have a fuel issue. Check fuel pump and pull spark plugs out to see if they are damp with fuel. Yes this is a time consuming exercise.
Pull spark plug out and ground (be effing careful when doing this) and check that you can see the spark. Don't need to do this to all plugs but at least one from each coil pack would be good.
Re: Cranking but not starting
Posted: Wed Dec 11, 2013 4:11 am
by payaya
Get back to basics dude. Pull a lead off a front coil check for spark. If that's good pull the front injectors off the inlet see if you are getting an injector pulse then work from there. Don't go to specific items as you don't even know why the cars not starting.
Re: Cranking but not starting
Posted: Wed Dec 11, 2013 11:32 am
by Daniel2019
Both the coilpacks and injectors work fine, they've been tested. Im thinking that its a fuel pump issue. But nothing I can do until I get back home
Re: Cranking but not starting
Posted: Wed Dec 18, 2013 5:02 pm
by payaya
How do you know the injector is working fine? Where they pulsing?
Re: Cranking but not starting
Posted: Wed Dec 18, 2013 5:23 pm
by Daniel2019
payaya wrote:How do you know the injector is working fine? Where they pulsing?
They are Shane's injectors.
It's ok, we got it started. We aren't getting any fuel. Got it down to a sh*tty immobilizer or wiring, starts when pump is independently powered
Re: Cranking but not starting
Posted: Wed Dec 18, 2013 5:37 pm
by silverGPX
Do u guys have fire extinguisher handy?
Re: Cranking but not starting
Posted: Wed Dec 18, 2013 5:42 pm
by Daniel2019
No, but probably should
Not starting it again until we can get the pump working on its own and everything else is connected. Just wanted to make sure it actually starts before putting everything back together in case it didn't and had to take it back to mechanic.
Re: Cranking but not starting
Posted: Wed Dec 18, 2013 6:59 pm
by payaya
Read up about getting an injector pulse. Changing the injector to a new working injector doesn't guarantee a working injector.
Re: Cranking but not starting
Posted: Wed Dec 18, 2013 7:06 pm
by PHIL069
Daniel2019 wrote:starts when pump is independently powered
Great idea