need help on wiring please

[blazenbee]

hi i am in need of some one that can wire up my engine wire in my bravo ute i did the engine conversion by putting in Mazda 929 DOHC engine and transmission i ended up buying wiring book to rewire the engine but i cant make the engine run i live at canton beach nsw (central coast)
rafi

[Matsuda 9]

ok, which DOHC did you install, HC, HD1, HD2, HE???

what are the symptoms?

[blazenbee]

Hi Matsuda 9 it is hc 1991 model i had the cor for 6 months did the timing belt before pulling the engine out i had auto elec. do the wires for me but i don't think his ever done one before so all it dose is crank over wont's to fire but noting i do have the wiring book
thanks rafi

[Matsuda 9]

had similar issue when i didi conversion on my 626, turned out wrong temp sensor for the ECU. doubt that this is your problem.

ok, lets start with the basics:
* spark
* fuel (and pressure)

important points on parts used form 929:
* ECU
* Coil/Igniter
* VAF

is the fuel pump sufficient? did you try to run 929 pump?

if you used the diagrams, you generally should be fine, i guess i would start at isolating the issue...
* check spark on all plugs
* check if the injectors spray
* disconnect VAF (to see if you can start it in 'limp home' mode

this just from the top of my head after a good drinking session i my come up with something more useful later

[Matsuda 9]

oh... also remember that ECU needs the gearbox signal, may need to earth the neutral switch wire

[blazenbee]

OK i will try as suggested thanks for your reply Matsuda 9

[sim_rx3]

yeh they are tricky when trying to go original ecu.

personally id go aftermarket ecu. but up to you.

[Matsuda 9]

i second Sim (he knows what he is talking about )

if you are good with the soldering iron, MegaSquirt - Electronic Fuel Injection Computer by Bowling and Grippo ©2010 is a good option and relatively cheap (its a DIY ECU)

[blazenbee]

this engine was running before i pulled out of the car i think he tried to short cut by not using the harness of the 929 i wish he did car be drivable now.
i`m not that good with wires if u know any one that can do the job for me i`ll be more than happy to pay for it.
thanks raffi

[blazenbee]

Hi Matsuda 9 and sim_rx3 i ended up buying wiring manual for the engine redone the wires as per diagram now i have spark fuel pump working problem i have now is it will only start and run for 30sec.and cuts off i`m using bravos fuel pump can any one point me what i need to do next thanks
king regards raffi