Alan M
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 posted on 4/4/10 at 03:55 PM |
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Megajolt
I've just finished fitting my Megajolt to my 1300 Xflow, apart from TPS, which is held in closed throttle position. I set the gap in the trigger
wheel to 10 BTDC but all I get is a backfire through the exhaust. The car ran fine before. Have I done something stupid, or am I being thicker than
usual
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Paul (Notts)
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| posted on 4/4/10 at 04:14 PM |
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quote:
. I set the gap in the trigger wheel to 10 BTDC but all I get is a backfire through the exhaust
sounds like you have set up the VR sensor and trigger wheel wrong.
eg..
Fitting the VR Sensor and the 36-1 wheel:
Assuming you have obtained a suitable 36-1 wheel, you need to establish the
correct relationship between the VR sensor and disc.
There are two methods to visualise the relationship with the same outcome.
SPECIFIC-ANGLE is defined as follows: EDIS4=90, EDIS6=60, EDIS8=50
EITHER
1) Turn your engine to SPECIFIC-ANGLE degrees before TDC (check direction
of rotation!). Mount the VR sensor wherever is convenient and mount trigger disc
so that the centre of the sensor aligns with the centre of the missing tooth.
OR
2) Set your engine at TDC, then put the missing tooth either 9, 6 or 5 (depending
on no. cylinders) teeth in front of the sensor. (Count from missing tooth in
opposite direction of rotation) This will put the centre of a tooth central to the
sensor.
i.e. EDIS4 = 9 teeth, EDIS6 = 6 teeth, EDIS8 = 5 teeth (Ensure you know the
direction of rotation for your engine)
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Paul (Notts)
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| posted on 4/4/10 at 04:17 PM |
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see..
http://www.autosportlabs.net/MJLJ_V4_vehicle_installation_guide#EDIS_installation
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Alan M
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| posted on 4/4/10 at 04:22 PM |
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Brilliant! I was doing it wrong. Thanks for your help, I give it a go. Cheers, Alan.
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Alan M
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 posted on 4/4/10 at 06:36 PM |
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Fired up first time as soon as I set the Trigger wheel correctly. Ta a lot!
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