Okey here is the deal. I had a lot of problems getting my car STARTING. The engine is a Jspec and doesnt make it easier. My first problem was that the primary rear injector didnt fire but i fixed that. Now does both fire!
I change plugs and got the baby runnin but it wont idle and nither go higher than 4000 rpm. When i press the throttle hard it stalls but again i can go up to 4000 before it stalls..
Summary:
-It idles only for 4sec before stall
-stalls if i push the throttle to the floor
-stalls over 4000 rpm
-Both rotors got spark and fuel

What can cause these problems?

 

Sounds like either leaking or stuck secondary injectors... Or another problem, but I'd definitely concentrate on the secondary injectors!

They kick in at 3800rpm, or straight away at WOT, both of which are causing you problems!

 

But it doesnt idle! and if the kick at 3800 it should idle! what is WOT?

 

WOOT* is a slang term for flooring it. Creating a woot sound from the engine lol.

 

Woot!

W.O.T. is Wide Open Throttle..

 

haha :P
Then i agree, since it dies when i WOOT and hit 4000rpm..
But the idle.. when i start it runs for 4 sec on 750 and then dies...

 

MY secondaries are in great shape but they dont fire! they dont get any signal from the ECU.. What tells the ECU to fire the secondaryies? Can it be the AFM?

 

maybe a fuel filter? or pump? or somthing cheaper than fuel injectors first, **** even check the sock filter in the tank. sorry but to me injectors are pretty damn expensive

 

the primarys work fine it is something with the signal to the secondarys.. but my wiring is okey from the ecu to the injectors.. maybe there are some damaged sensors but witch sensors controlls the fireing of the secondary injectors?

 

is your afm even hooked up????

 

yes it is but can it be the AFM? maybe its dead...?

 

i unplugged the AFM just for fun.. the car didnt go higher than aprox 2000 but it did idle at 1200! does that say anything?

 

if you unhookde the afm and it acts different, then the afm is working.... usually...
check ther esistance on the tps?

 

i checked.. 1k at idle and 5 at some throttle..

 

I hate to suggest this, but go get a compression test done before you do anything else...

 

i dont think thats necessary since i had it all running once and i KNOW the secondaries dont fire.. but i dont know why :S
While i was testing right now i tried to run it as near to idle as possible.. got it running on 1500 but on 1400 it reved up to 1800 and died.. as my motocross does when it doest have any more fuel.. what is this?

 

your secondaries won't fire unless you're out on the road. They should never fire at idle.

So if you arent getting fuel, then look at your primary fuel injectors.

But my suggestion still stands...

 

ehh do i need to be on the road to get the car running above 4000 or at WOT? That CANT be true.. Ill take a comp test soon..

 

no the secondary injectors only fire under load.. Look in the FSM

So if you are just dead-reving it, the secondaries have NOTHING to do with it..

like I said, look at your primaries and do a compression check.

The compression check may be fine, but you'll feel a lot better doing it now and having it be bad, then doing it later after wasting time and $$...

 

Compression Check .

Check AFM per FSM (get to do this myself soon, yay)

Set TPS with 2 light method


And finally, check to make sure it will rev over 4000 when its actually on the road, not just sitting in neutral.

 

i cant find anything about that in the FSM.. BUt if thats true then yes, my primarys is the problem.. hmm wierd stuff..

 

but i have had it over 5000 in neutral! and WOT also worked..

 

secondaries fire if you floor it when reving...
manifold vacuum is at 0, and it is at wot
secondaries will fire.

 

so why wont my secondaries fire?