please help wont start after engine change - Page 2

**Einstein** · 5-10-08, 18:00

Check the voltage at the dizzy connector...

rear most pin of 3 pin connector from memory.. should be 12V from ignition switch..

Check MAIN and IG KEY fuses under the bonnet..

John

mazda1109 · 5-10-08, 18:50

Paul ,your spot on my mistake camshaft sensor in dizzy,

Matt,Good luck tomorrow finding the fault

Lee,,,,

**mazdamatt** · 5-10-08, 18:54

cheers for the help, i take it the fuses are in the main big fuse box will test wires

**Einstein** · 5-11-08, 4:51

Yes Matt, they feed power to the dizzy..

If you test for power at the dizzy, and you get 12V on the 3rd pin (possibly black with white stripe) then don't bother checking the fuse, as all is well..

Any other fault would be a wiring problem, the dizzy or ECU.. the latter two being unlikely..

John

**mazdamatt** · 5-11-08, 7:54

ideal got to go tesco's now going to have a look in an our will keep u posted

**mazdamatt** · 5-11-08, 13:46

still wont go, changed ecu dizzy crank sensor, everything, why it wont go i dont know

**Einstein** · 5-11-08, 13:57

Did you check for power going to the dizzy?

and I presume you are still checking for a spark...

John

**mazdamatt** · 5-11-08, 13:59

yep got power to it fine, everything seems to be fine

**Einstein** · 5-11-08, 17:28

Basically, the CPS in the dizzy sends a signal to the ECU, this in turn sends a signal back to the Ignitor module, and then to the coil and plugs.

If there is no spark, the only things it could be are the Wiring, Dizzy, or ECU
It is unlikely all 6 leads, and plugs are shot..

John

**mazdamatt** · 5-11-08, 17:48

must be wiring then tried everything
plugs are new and leads are good

mazda1109 · 5-12-08, 3:43

Hi Matt ,
the last prob i had with mine not starting was the dizzy ,i had voltage to the dizzy and all wired in correct, when they did a diagnostic test it was the coil inside the dizzy that was at fault,,,

once again good luck on getting it going,,

Lee,,,,

**Oddball** · 5-12-08, 6:14

Matt,

Can you do me a favour and connect the lead to the power steering pump please and try her. Its actually being listed as one of the electronic advance control system sensors

.. to the best of my knowledge, this lead is what tells your steering to stiffen up at speed, but hey .. lets give it a go as you mention its not connected..

Paul.

**Oddball** · 5-12-08, 6:28

Forget the PS wire, i have just found another section stating the engine will fire without out.

Also, and sorry to be thorough...

VAF on the right way around ? and if an auto, is everything connected on the box. Are we checking for spark on different parts of the body to ensure earths are good ?

Also check for codes ...

Paul.

**Postal Dude** · 5-12-08, 11:58

Nine times out of ten if you get issues after an engine swap it's either Something left unplugged or usually a bad earth!

Gerry

**mazdamatt** · 5-12-08, 13:06

evrythings connected fine, tried 3 dizzys that work on my other mx6, tried loads of ecu's, wiring looks fine, im really stuck, got a garage looking at it tomorrow, they are bringing some sort of laptop to plug in to it, its only showing fault code for fuel pressure regulator but thats nothing,
gonna try the earths again later

5-12-08, 6:14	#27 (permalink)
Oddball Join Date: Jun 2003 Location: kent, UK Age: 40 iTrader: (3)	Matt, Can you do me a favour and connect the lead to the power steering pump please and try her. Its actually being listed as one of the electronic advance control system sensors .. to the best of my knowledge, this lead is what tells your steering to stiffen up at speed, but hey .. lets give it a go as you mention its not connected.. Paul.
	Current Ride and new project- 93 Cavalier Turbo, running approx 260 at 12psi on phase one chips. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ R.I.P 92 2nd gen HYBRID - ZE cams, ZE inlet manifold, Mag leads, 65mm TB, CAI, Tokico shocks springs, SS headers, SS DE-cat, SS Scorpion cat back, 17in Wolfrace Osaka alloys - pics ==>My Album

5-12-08, 6:28	#28 (permalink)
Oddball Join Date: Jun 2003 Location: kent, UK Age: 40 iTrader: (3)	Forget the PS wire, i have just found another section stating the engine will fire without out. Also, and sorry to be thorough... VAF on the right way around ? and if an auto, is everything connected on the box. Are we checking for spark on different parts of the body to ensure earths are good ? Also check for codes ... Paul.
	Current Ride and new project- 93 Cavalier Turbo, running approx 260 at 12psi on phase one chips. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ R.I.P 92 2nd gen HYBRID - ZE cams, ZE inlet manifold, Mag leads, 65mm TB, CAI, Tokico shocks springs, SS headers, SS DE-cat, SS Scorpion cat back, 17in Wolfrace Osaka alloys - pics ==>My Album

5-12-08, 11:58	#29 (permalink)
Postal Dude Join Date: Sep 2004 Location: Durham, UK Age: 45 iTrader: (0)	Nine times out of ten if you get issues after an engine swap it's either Something left unplugged or usually a bad earth! Gerry
	97 Black MX-6 and a Toyota Estima www.rcmf.co.uk www.namfc.co.uk

5-10-08, 18:50	#17 (permalink)
mazda1109 Join Date: Dec 2007 Location: Bridgend.South Wales, UK iTrader: (1)	Paul ,your spot on my mistake camshaft sensor in dizzy, Matt,Good luck tomorrow finding the fault Lee,,,,

5-10-08, 18:54	#18 (permalink)
mazdamatt Join Date: Nov 2005 Location: newquay, UK Age: 24 iTrader: (0)	cheers for the help, i take it the fuses are in the main big fuse box will test wires

5-11-08, 7:54	#20 (permalink)
mazdamatt Join Date: Nov 2005 Location: newquay, UK Age: 24 iTrader: (0)	ideal got to go tesco's now going to have a look in an our will keep u posted

5-11-08, 13:46	#21 (permalink)
mazdamatt Join Date: Nov 2005 Location: newquay, UK Age: 24 iTrader: (0)	still wont go, changed ecu dizzy crank sensor, everything, why it wont go i dont know

5-11-08, 13:59	#23 (permalink)
mazdamatt Join Date: Nov 2005 Location: newquay, UK Age: 24 iTrader: (0)	yep got power to it fine, everything seems to be fine

5-11-08, 17:48	#25 (permalink)
mazdamatt Join Date: Nov 2005 Location: newquay, UK Age: 24 iTrader: (0)	must be wiring then tried everything plugs are new and leads are good

5-12-08, 3:43	#26 (permalink)
mazda1109 Join Date: Dec 2007 Location: Bridgend.South Wales, UK iTrader: (1)	Hi Matt , the last prob i had with mine not starting was the dizzy ,i had voltage to the dizzy and all wired in correct, when they did a diagnostic test it was the coil inside the dizzy that was at fault,,, once again good luck on getting it going,, Lee,,,,

5-12-08, 13:06	#30 (permalink)
mazdamatt Join Date: Nov 2005 Location: newquay, UK Age: 24 iTrader: (0)	evrythings connected fine, tried 3 dizzys that work on my other mx6, tried loads of ecu's, wiring looks fine, im really stuck, got a garage looking at it tomorrow, they are bringing some sort of laptop to plug in to it, its only showing fault code for fuel pressure regulator but thats nothing, gonna try the earths again later