L28 Efi Conversion Help Help Help

[whiskerz]

Hi everyone, ive just finished doing an efi conversion on my L28. Efi is out of an late r30 skyline.problem is it turns over like a buet but it just wont fire.checked fuel its good,spark is good and im out of ideas! any suggestions would be great. thanks

ps it will get my missus of my back to get the bloody car outta the shed!

[blind_elk]

Are the injectors working? Use a screwdriver as a stethoscope to listen to the injectors while cranking the engine.

Is the spark occurring at the right time? Distributor's not 180 deg out, is it?

[whiskerz]

Are the injectors working? Use a screwdriver as a stethoscope to listen to the injectors while cranking the engine.

Is the spark occurring at the right time? Distributor's not 180 deg out, is it?

<{POST_SNAPBACK}>

THE INJECTORS AR ALL WORKING FINE,AT LEAST WHILE CRANKING AND THE DISSY IS GOOD TO. TRIED SWAPPING THE LEADS AROUND 180 DEGREES AND MADE NO DIFFERENCE.CANT PHYSICLY TURN THE DISSY BODY AROUND 180 DEGREES WITHOUT MAJOR MODS. CHECKED INJEC WIRING AND IS ALL HOW IT SHOULD BE. PUT ANOTHER DISSY IN AND IS BETTER BUT STILL WONT START. BUGGER BUGGER BUGGER

[blind_elk]

CANT PHYSICLY TURN THE DISSY BODY AROUND 180 DEGREES WITHOUT MAJOR MODS.

<{POST_SNAPBACK}>

You don't turn the dizzy body around, you rotate its drive shaft (shaft is driven by the oil pump, so you need to remove that).

Have you checked the ignition timing while cranking the engine?

[B0oStEr]

Check that the ignition/efi still has 12volt when the key is released from the start position.

[whiskerz]

Check that the ignition/efi still has 12volt when the key is released from the start position.

<{POST_SNAPBACK}>

thanks guys, after some brain bashing we found a fix. after checking that all the electrics were doing what they should be doing and at the right voltage,we were stumped. In the end we found we needed more advance. on the bottom of the dissythere is a plate with 2 slots which bolt into the base of the dissy.simple answer open one of the slots tottaly which gives the needed advance. thanks all for your help

[blind_elk]

If you had to make that adjustment / modification, then I reckon the dizzy's drive shaft is a tooth out of kilter.

[342Four]

yep - i would agree with blind_elk on that one

those to screws are to fine tune

if u opened one right up to get it too fire then ur dizzy shaft is out

and becasue it fired after turning it all the way out then i would imagine it was only one tooth out

[whiskerz]

yep - i would agree with blind_elk on that one

those to screws are to fine tune

if u opened one right up to get it too fire then ur dizzy shaft is out

and becasue it fired after turning it all the way out then i would imagine it was only one tooth out

well you got me thinkin so i trailered the beast down to my local mechanical wizard ,tolod him what was goin on,gave him a few suggestions as to why the bloody thing would not go as it should and then took a weeks holiday. got back and he reckons th motoor is outa a patrol with the injection outa a late model r30.only thing he could find wrong was 2 of the 3 wires going to the tps were ass about.all els was good the mod was about all u could do to make it work. so now the misses is happy again its out of the shed. thanks guys!