Hi there, I've changed the sparks, leads, and coil pack now my engine either won't start or when it does sounds uneven stinks of petrol and vibrates violently(sounds like a diesel). I'm really at odds what's happened what I've done wrong and how to fix it. I drive a fiat punto grande 1.4 2009
Technical Fiat punto grade 1.4 sounds really bad
- Thread starter Qwerty91q
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Technical Fiat punto grade 1.4 sounds really bad
Have you put the plug leads on in the right order from the coils? (i.e., replaced one lead at a time)
Richard8672
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Quite possibly you've put the wrong leads to the wrong plug. By sounds of things anyways its firing incorrect.
did it fire ok before you changed the leads and coil packs? If no then i'd be looking at how you've plugged in the new leads.
did it fire ok before you changed the leads and coil packs? If no then i'd be looking at how you've plugged in the new leads.
In which case, you've either put the leads on the wrong plugs from the coil, or you have a faulty coil.
The coil should have a number next to each output, this will be your cylinder number. Cylinder 1 starts at the timing belt side of the engine, and cylinder 4 at the gearbox side.
Ensure you have the leads from the corresponding cylinders to the correct output number on the coil. That should sort you.
The coil should have a number next to each output, this will be your cylinder number. Cylinder 1 starts at the timing belt side of the engine, and cylinder 4 at the gearbox side.
Ensure you have the leads from the corresponding cylinders to the correct output number on the coil. That should sort you.
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Richard8672
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you've possibly got the combination wrong so in order of the timing of sparks.
either this or one of the new leads could be faulty. Try using your old leads but you need to have the combination correctly or else it will always misfire
either this or one of the new leads could be faulty. Try using your old leads but you need to have the combination correctly or else it will always misfire
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Looking further into it, is the coil mounted to the top of the engine?
If so, the lead order is 1-1, 2-2, 3-3, 4-4. Looking directly
I.e. cylinder 1 lead connects to the first plug hole on the coil, and so on. Work from the timing belt side of the engine first.
Yes the coil is mounted on the of the engine.
I understand the lead order but the lead numbers I have are
1, 1, 2, 7
Ignore the lead numbers. Just go for connecting cylinder 1 spark plug to output 1 of the coil and so-on.
Ah got you, I have tried this when I changed the leads and the coil. When the the problem started. Even does it when I reverted to the old coil and leads
Did you disconnect anything else? the VVT solenoid perhaps?
