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NO idle and doesnt goe higher than 4k

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Old 07-05-05, 09:59 AM
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NO idle and doesnt goe higher than 4k

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?
Old 07-05-05, 11:00 AM
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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!
Old 07-05-05, 03:14 PM
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But it doesnt idle! and if the kick at 3800 it should idle! what is WOT?
Old 07-05-05, 03:30 PM
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WOOT* is a slang term for flooring it. Creating a woot sound from the engine lol.
Old 07-05-05, 03:45 PM
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Woot!

W.O.T. is Wide Open Throttle..
Old 07-05-05, 03:45 PM
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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...
Old 07-09-05, 06:55 PM
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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?
Old 07-09-05, 07:10 PM
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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
Old 07-09-05, 07:31 PM
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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?
Old 07-09-05, 08:23 PM
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is your afm even hooked up????
Old 07-10-05, 05:30 AM
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yes it is but can it be the AFM? maybe its dead...?
Old 07-10-05, 09:24 AM
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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?
Old 07-10-05, 09:32 AM
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if you unhookde the afm and it acts different, then the afm is working.... usually...
check ther esistance on the tps?
Old 07-10-05, 09:44 AM
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i checked.. 1k at idle and 5 at some throttle..
Old 07-10-05, 10:14 AM
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I hate to suggest this, but go get a compression test done before you do anything else...
Old 07-10-05, 10:25 AM
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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?

Last edited by Sindregutt; 07-10-05 at 10:48 AM.
Old 07-10-05, 11:52 AM
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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...
Old 07-10-05, 11:59 AM
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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..
Old 07-10-05, 12:06 PM
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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 $$...
Old 07-10-05, 12:11 PM
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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.
Old 07-10-05, 12:12 PM
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i cant find anything about that in the FSM.. BUt if thats true then yes, my primarys is the problem.. hmm wierd stuff..
Old 07-10-05, 03:19 PM
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but i have had it over 5000 in neutral! and WOT also worked..
Old 07-10-05, 05:15 PM
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Originally Posted by dcrews
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 $$...
secondaries fire if you floor it when reving...
manifold vacuum is at 0, and it is at wot
secondaries will fire.
Old 07-11-05, 05:23 AM
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so why wont my secondaries fire?
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