The ECU should run the fuel pump for a few seconds as soon as the
ignition is turned on.
If it's not then it's not happy.
I can help but i need as many details as you can give me off the engine
wiring loom and the adaptor loom you have.
Did it come with any wiring diagram ?
Jim
On 20/05/2011 23:16, Mark Miles wrote:
no, it doesn't run the fuel pump? I am hoping this is not going to end
up expensive!!
/*Mark Miles*/
/Manager/
/Bar Square/
/8 Market Place/
/Wokingham/
/Berkshire/
/RG40 1AL/
/
/
/07522 67 60 57/
------------------------------------------------------------------------
*From:* Jim Hearne <[email protected]>
*To:* [email protected]
*Sent:* Fri, 20 May, 2011 14:53:19
*Subject:* Re: [Quantum Owners] Re: 2+2 Zetec conversion
Those voltages mean both coils are being turned on continuously, this
is not good.
I expect it gets rather warm as well.
When you turn the ignition on does the fuel pump run for a few seconds ?
Jim
*From:* Mark Miles <mailto:[email protected]>
*Sent:* Friday, May 20, 2011 2:41 PM
*To:* [email protected]
<mailto:[email protected]>
*Subject:* Re: [Quantum Owners] Re: 2+2 Zetec conversion
I now have the following information.
pin 58 on the ecu - green w red stripe. left hand terminal on
coilpack connector. 1.37 ign on cranking goes up to 1.77
pin 59 on the ecu - green w yellow stripe rh term on coilpack
connector. 1.39 ign on cranking goes up to 1.79
pin 57 (or 37) on the ecu - black wire 12.2v with ignition on.
centre term on coilpack remains constant.
These low voltages would explain why there is no spark but I can't
understand why they would be so low.
The wire from the old coil loom to the ecu runs through a black
box which does contain at least one relay which can be heard
latching upon switching the ignition on.
/*Mark Miles*/
/Manager/
/Bar Square/
/8 Market Place/
/Wokingham/
/Berkshire/
/RG40 1AL/
/
/
/07522 67 60 57/
------------------------------------------------------------------------
*From:* Jim Hearne <[email protected]>
*To:* [email protected]
*Sent:* Fri, 20 May, 2011 14:17:11
*Subject:* Re: [Quantum Owners] Re: 2+2 Zetec conversion
All Zetecs have an electronic road speed sensor for the ecu fitted
onto the speedo drive on the gearbox.
On cars with a mechanical speedo the cable attaches to the speed
sensor which in turn attaches to the gearbox.
On cars with a electronic speedo there is no outlet for the speedo
cable and the electronic speedo uses the same signal as the ecu.
Without it fitted you will have idle speed issues though nothing
major and it's certainly not causing your current problem.
The old coil connection should have power on the black wire, the
green wire just goes back to the rev counter.
I hope this loom adaptor has several relays in it and it isn't
trying to run the Zetec power straight from the old coil feed.
The black wire on the old ignition coil should just be feeding a
relay, this is turn should switch battery power to the ecu.
Jim
*From:* Mark Miles <mailto:[email protected]>
*Sent:* Friday, May 20, 2011 2:08 PM
*To:* [email protected]
<mailto:[email protected]>
*Subject:* Re: [Quantum Owners] Re: 2+2 Zetec conversion
I don't believe it was from an auto. The road speed sensor is
a mechanical cable so not that. I will let Peter know what
those voltages should be. What voltages should there be on the
old coil wires, there are wires on the loom adapter that
connect to those as well, I assume that that is the ignition
switched supply to the new ecu.
Cheers
/*Mark Miles*/
/Manager/
/Bar Square/
/8 Market Place/
/Wokingham/
/Berkshire/
/RG40 1AL/
/
/
/07522 67 60 57/
------------------------------------------------------------------------
*From:* Jim Hearne <[email protected]>
*To:* [email protected]
*Sent:* Fri, 20 May, 2011 13:55:46
*Subject:* Re: [Quantum Owners] Re: 2+2 Zetec conversion
What car is the engine and wiring from ?
Are you sure it's not the road speed sensor connector (fitted
onto gearbox speedo drive), a 3 pin connector.
The coil should have 12v ignition on the centre pin.
The outer 2 pins will also be 12v but will drop while the
engine is running.
The engine wasn't from an automatic was it ?
Jim
--------------------------------------------------
From: "taximark" <[email protected]
<mailto:[email protected]>>
Sent: Friday, May 20, 2011 1:47 PM
To: "Quantum Owners Group" <[email protected]
<mailto:[email protected]>>
Subject: [Quantum Owners] Re: 2+2 Zetec conversion
> First major hiccup, the engine is in, the looms are spliced
but there
> is still no spark. There is a connector on the new loom for
an engine
> speed sensor( labelled as such), but appears to be none on
the new
> engine. The crank position sensor and the cam phase sensor
are both
> connected. Any suggestions on whether this is a major issue.
the coil
> pack has three wires going to it, does anyone know what the
voltages
> should be on these three wires?
>
> Thanks for your advice
>
> mark
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