Discussion in '280ZX' started by DatsunMan, Apr 28, 2016.
Not just you Rob. That s what I see too, available when you 'Go Advanced'
So guys do you have to 'Go Advanced' to see the paperclip?
I don't so that's perhaps why some people can't follow my instruction?
I've never used the reply button. I just type in the message section and click go advanced, then managed attachement. Its all a bit long winded so I checked the way Rob does it and its much simpler. Chears Rob.
First 3 photos of N-280-MAN on the Isle of Man...
nope, still can't work out how to do this!!
Just a test, no titillation intended whatsoever
You look quite different with your clothes on Matt.
Yeah but what about my new hair do!
After all the advice I've received from members, I have done the following:-
New Dizzy cap & rotor arm - no improvement
New Fuel Filter - no improvement
2nd-hand ECU sourced from eBay - due tomorrow... so I'll soon find out!
Regards again, Geoff
have finally managed to attach some photos...
paperclip suddenly appeared!
Changed ECU, with one sourced off eBay...
Car starts & runs, so at least its the right one...
Although, I did check the numbers corresponded of course...
But guess what... No Improvement !
Looks like I need to give up now, & seek help from a garage perhaps?!
couple more photos attached, now I've gone advanced!!
Nice looking car mate. Have you solved you issue yet?
Saw this on eBay and I would strongly suggest investing in a copy. You will find all there is to know on how to fix 280ZX EFI issues within it.
Great find... I've just bought it off eBay now, thanks.
Obviously, my issues remain!
Even replaced ecu, but no difference...
Still think it might be electrical, so maybe I should try the coil next?!
Onwards & upwards...
Manual will help no end.
Maybe you should get a fuel injection place to have a look at it. They can usually see where the fault is or is not coming from. I used a Bosch place in Reading. This way you can narrow down or resolve the issue more quickly.
For the moment the problem still seems to be on 3 cylinders and not a general fault - which means 'general' parts like the coil, air flow meter, should be ok...
You need to confirm if the injectors are firing on the cylinders where the problem occurs, cheapo stethoscope ( is that the right spelling ? ) from ebay is needed to listen to them clicking.
Injectors could be gummed up and need removing and testing on bench ( stick a load of redex into the tank )
Remove spark plugs and with good battery start car as normal ( ie crank it ), do you get petrol mist blown out of each spark plug hole ( small piece of tube to sniff through if not obvious )
Check the wiring to series resistors and the resistors themselves ( check connections )
Is there voltage at all injectors when running on 3 cylinders ?
You need to get the car running on easy start ( 2 man job, 1 man to control flow of easy start and other to keep car running - ) does its run more evenly ( ie all cylinders seem to be firing ). You may need to add easy-start to breather / or other port in intake manifold as airflow meter flap may block flow...
Could be a fault with the dizzy, as parts of it a cylinder specific..but they normally fail in a random fashion rather than knocking the same 3 cylinders out.
Have you done a compression test on all cylinders ?, could be valve / piston problem.
The injection system on the 280zx is simple so i would eliminate the obvious rather than paying someone at a garage to plug a 2015 code reader in to a 1970's ecu that doesn't have a code reader socket.
Just while you are looking into the suggestions above, I would add that you should have a peep into the fuel tank via the hatch in the boot. Look for residue like flakes of rust. I had an issue where the car would run fine for a few mins then start coughing and spluttering then dies. A minute later it would start and run fine. Turned out to be rusty bits in tank building up and starving engine of fuel then they drop back when the engine dies and allows flow again. Going by the talk about only half the engine firing it sounds like the stuff mentioned above, but I would check this to tick it off before getting carried away..
Update! ok,ok, it's about time, & yes, I forgot to post the conclusion to this dilemma a few months ago!
Suffice to say, after changing various electrical & fuel components...it turned out to be cured by cleaning the injectors & fuel tank! Including new filter of course, plus additional one fitted. And it's run just fine ever since...
Better late than never!!
Thanks again to all respondees
Regards, Geoff - Isle of Man
Great stuff Geoff, good to hear you go it running at last.
Glad you got it sorted so frustrating
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