eddbaz
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| posted on 23/12/08 at 04:06 PM |
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zx12r overfueling help needed
In running a zx12r a1 model engine in my car with an itg sausage type filter and an mk 4-2-1 exhaust.
when I run the engine it runs very rich and glogs the plugs up in no time.
I can lean it up with my power commander,but having to input some quiet large minus values to compensate,for the emmisssions in my sva I had to run
between -50 and -60 at idle revs and 3000 and around -20 to -25 so the car was drivable.
Can anyone who has had a zx12r let me know how their engine ran on installation and if they've had a power commander mapped any chance thay can
send me a copy of the map so I can see what sort of values I should be looking at.
So far I know mt TPS sensor ius ok and I've tried another map sensor as well but that has made no difference,I'm also not getting any
fault codes when I switch the ignition on.
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sucksqueezebangblow
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| posted on 23/12/08 at 04:27 PM |
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Could your fuel pressure be to high? You may need to adjust your fuel regulator.
Better to Burnout than to Fade Away JET METAL ~ AndySparrow © 
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Hellfire
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| posted on 23/12/08 at 04:59 PM |
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Ed, when we installed our engine we downloaded a suitable map from the dynojet website and installed it. Engine was running fine but a bit on the lean
side for a short while until we could get it custom mapped on the rolling road at Holeshot. Have you tried the various maps available for download?
Phil
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yorkshire-engines
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| posted on 23/12/08 at 05:38 PM |
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Hi zx12 a models have the fuel pressure reg on the rail are you using this as a return pipe if so ppressure should be ok (3 bar)
check the injectors see if there spraying all the time could have some crap in them and need cleaning
also check map sensor make sure the hole in pipe isnt blocked
cheer s
malc
ps i have an ecu if you ned to try another
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progers
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| posted on 24/12/08 at 02:11 PM |
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Sounds like one of the sensors is not working an/or excessive fuel pressure leading to an overich mixture.
- Paul
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Smartripper
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| posted on 24/12/08 at 04:55 PM |
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Hello,
I got the same with my zx12r engine in the mnr vortx.
After much looking it was the airpressure sensor, no f1 light but running very rough and wet.
Measured the sensor according to the book.. and i tought everything was ok, but after chancing it for a other one the problem was solved.
Daniel
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