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My Rb26 Wont Start... Why!

Owgasm

By Owgasm,
in General Maintenance

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Godzilla32 Veteran

Godzilla32

Posted
Posted

Mate i think you need to read the whole thread. Nearly all of your questions have already been answered there.

I will admit however that the immobiliser is a good point. Worth a look if there is one fitted.

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Owgasm Grand Master

Owgasm

Posted
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Posted

DONE! :)

If only i removed the plugs the proper way instead of removing the coils and leaving the rail and harness intact.

IT WAS THE STUPID EARTH CABLE! 1 of the 2 was cut.

After getting new o rings, put the rail and everything back together. tried to start, nothing.

Went through the steps for the sparks, no spark, i thought it must have been the harness, took the coil harness of, in the process when moving the earth cable, i noticed only one was still intact.

Ran to the back, ripped out another harness, plugged it in.

key in, turn, start within 1 second.

Sigh and many CHEERS!!!!

Thanks alot to all the input.

I guess it was the car telling me to give it a service, new plugs and o rings.

Thanks again.

Tomorrow. and for the next few weeks, i'll be driving it ;)

Owgasm Grand Master

Owgasm

Posted
  • Author
Posted (edited)

Ah Geez.

I think there is a ghost in the car and it doesn't want me to drive it.

After i changed the o ring on the injector that was leaking petrol.

I put it all back togethere and then let it run for about 10mins.

reversed out of driveway, noticed a bit of liquid on the driveway.

Checked, another injector was leaking.

This morning, got the rail out changed all o-rings, reconnected everything, turned the key for the petrol pump then checked to see if the injectors were OK. All good, but the stupid speedflow/earl fittings from the fpr was leaking. Tried to fix that, for some reason it was shreaded like no other. thats why it was leaking, ah well, ran back got another set, connected that.

NOW!. At idle the engine isn't stable and to me the engine sounds a bit funny along the fuel rail side.

The rpms are over 1k but every few seconds move to like 1.1 or 1.2 it just keeps doing that its like up and down up and down.

Above 2-3k rpm its smooth and just like normal.

but sometimes when i let go of the pedal, at about 1.8k - 2.0k it just just hangs there :S and slowly i mean real slow, comes down.

Any ideas guys? Thanks for the help so far.

Could it be the injectors?

clogged fuel rail o.O ?

Do the speedlow fittings have a direction of flow? Like are some ment to go out only and some ment to go in only? (fuel flows into rail, fuel flows out of rail)

Could i have done something accidentally while pulling and out the injectors?

take it all apart and put together carefully again?

Ghost Car i swear, it doesn't like me anymore :blush:

I'll film what the problem is when i get the chance.

Edited by Owgasm
Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
Ah Geez.

I think there is a ghost in the car and it doesn't want me to drive it.

After i changed the o ring on the injector that was leaking petrol.

I put it all back togethere and then let it run for about 10mins.

reversed out of driveway, noticed a bit of liquid on the driveway.

Checked, another injector was leaking.

This morning, got the rail out changed all o-rings, reconnected everything, turned the key for the petrol pump then checked to see if the injectors were OK. All good, but the stupid speedflow/earl fittings from the fpr was leaking. Tried to fix that, for some reason it was shreaded like no other. thats why it was leaking, ah well, ran back got another set, connected that.

NOW!. At idle the engine isn't stable and to me the engine sounds a bit funny along the fuel rail side.

The rpms are over 1k but every few seconds move to like 1.1 or 1.2 it just keeps doing that its like up and down up and down.

Above 2-3k rpm its smooth and just like normal.

but sometimes when i let go of the pedal, at about 1.8k - 2.0k it just just hangs there :S and slowly i mean real slow, comes down.

Any ideas guys? Thanks for the help so far.

Could it be the injectors?

clogged fuel rail o.O ?

Do the speedlow fittings have a direction of flow? Like are some ment to go out only and some ment to go in only? (fuel flows into rail, fuel flows out of rail)

Could i have done something accidentally while pulling and out the injectors?

take it all apart and put together carefully again?

Ghost Car i swear, it doesn't like me anymore :blush:

I'll film what the problem is when i get the chance.

Its sucking air through the injector bosses...have you used genuine injector insulators (neoprene ring on bottom of injectors) as the aftermarket ones i once tried did the same thing as what you are describing. Genuine ones have a more rounded edge on them and the aftermarket ones have a squarer edge and dont seal as well. Try reseating them with a spray of silicon lube as this may seal them.

Owgasm Grand Master

Owgasm

Posted
  • Author
Posted

I'm using aftermarket O-rings that actually go into the rail but the much thicker insulator below that goes into the engine is genuine (i think, unless changed earlier), i didn't change them, they were fine.

Hmms.

Could it possibly be a bad fuel pressure?

Should i connect the fuel pressure gauge and see?

Godzilla32 Veteran

Godzilla32

Posted
Posted

Just check that the injectors are seated properly in the insulators at the bottom. You may need to remove them all and refit it all again with some lube on the injector pintle caps and on the insulators. Or if you wanna go all out buy a set of genuine insulators. Gimme your VIN for genuine part number. As mentioned the air leak will cause surging and high idle etc.

Deren

  • 4 weeks later...
mambastu Collaborator

mambastu

Posted
Posted

Did you fix the problem at all ?

I have a similar starting problem on my R32GTR.

So far I've tried :

New battery

New plugs

New fuel filter

New 044 pump

New adjustable pressure reg

Another ECU

Another set of coils

Another CAS

Cleaned AFM's

The car now generally starts after a couple of seconds of cranking but if you stall it within a few minutes of startup it won't re-start. To get it to start after a stall I've found the best method is :

Pull the fuel pump fuse

Crank for a few seconds

Replace fuse

Crank again

and then it generally starts ok.

The car idles at about 1000 rpm when warm nd there are no error codes on the ECU. Annoying problem :rofl:

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