STAGEA NO SPARK , EXPERTS NEEDED ! HELP

[DRTY14]

hey team

So I bought a 1997 C34 STAGEA had no engine (NEO RB25DE),loom or ECU
when I got it ,I bought a engine from a C35 LAUREL with spitfire coil packs
then got a hold of a neo stagea loom as I found there different to laurel
and skyline etc.

I turn the key on I hear the fuel pump prime up and have good fuel pressure
,have injector pulse and CAS seems to be fine ,but no spark there
my friend said today he found the signal was there but no power . . .
we cant find any alarms or immobilisers but it dose have the NAT
(Nissan Anti Theft) system , battery's in the key are fine and I use it to unlock
the car when im trying to find the fault

was supposed to be a quick money earn is now turning into a nightmare

ANY HELP WOULD BE MUCH APPRECIATED THANKS

[DRTY14]

anyone ??? maybe security shut down or body control module (BCM) ???

Any advice or help would be greatly appreciated

cheers

[Yellow4g63]

Since most of us here are in the US we never had that car before lol. If it's a Non neo to a neo harness you might want to get a FSM and check for which relay needs power. Sounds like the EFI or CAS isn't getting power.

[DRTY14]

Since most of us here are in the US we never had that car before lol. If it's a Non neo to a neo harness you might want to get a FSM and check for which relay needs power. Sounds like the EFI or CAS isn't getting power.

The body was a 25 NEO it now has a 25 NEO in it . . . .
im getting injector pulse when I spin the CAS in my hand with the ignition on indicates to me CAS Is working fine ?
and I have a spare NEO Hitachi CAS I have swapped to check it

cheers

[DRTY14]

me and a friend put a scan tool on it Friday afternoon , NO FAULT FOUND ,

he took the ECU away to check it

still no real progress

[godzilla_753]

so from what I read, you have good injector pulse, and no spark.

your best bet is to download the FSM for that model stagea and trace out the inputs for the spark plugs.

If I'm looking at the right diagram the coils share a common power coming off pin 7 on the ECM/ignition coil relay. that relay also connects to the pin 72 and 4 on the ecu and should be (+). Also coming off that relay are some grounds, so maybe start with that. If all those inputs are correct you should start. Also do you have a wire going into pin 32 on the edu? When I had my swapped stagea from japan, for some reason that wire was missing, and i had a similar problem, couldn't start the car. added a pos wire there and got it running. Also not sure if I'm looking at the correct diagram so please recheck yourself.

Electrical problems are the worse, good luck !