Peugeot 306 (1993 - 2001) - 99 1.6 MIL light on and engine jerks

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Tue 1 Jul 2008 21:00
99 1.6 MIL light on and engine jerks - ghj08
My '99 Peugeot ,modell XTB 1.6 , has the MIL (motor indicator light) turned on, when brought garage ,the ECU code indicated a flywheel sensor (crankshaft sensor ?) problem, after clearing code , code did not appear again, and all was ok for some weeks. Then the MIL light was lit again, then disappered, later the same evening.
Some days after it was lit again. After the MIL lits the engine jerks
for a while, especially uphill. Does the symptom indicate sensor fault or could
there be a another reason? .. like cam belt, or injection system ?

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Tue 1 Jul 2008 21:37
99 1.6 MIL light on and engine jerks - Screwloose

If a malfuntion indicator light shows on a TU-engined car; my first question is "Has it still got a Sagem coilpack and has it got genuine plugs in it."

What was the code number?
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Tue 1 Jul 2008 22:28
99 1.6 MIL light on and engine jerks - ghj08
I don't know the exact code but diagnosis showed periodic fault in flywheel sensor.
Is this the same as crankshaft sensor? If this error appeared again they said we should change this sensor? Was that a good pice of advice?
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Tue 1 Jul 2008 22:55
99 1.6 MIL light on and engine jerks - Screwloose

A periodic fault in the flywheel/crank sensor signal could be a ham-fisted way of saying that there's a misfire; or that it fails periodically...?

The sensor does measure the periods between crank half-rotations and will note a longer one - where there was no acceleration of the crank due to that cylinder not firing. [Yes; it can even tell which one misfired.]

TU crank sensors do go - and water gets in their plugs - but I'm still thinking "what coilpack?"
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