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Old 15-10-2011   #16
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Re: *HELP* Punto 1.1 55 Sx not starting after plug, coil and lead change

Quote Originally Posted by fingers99 View Post
Don't confuse the firing order (in fact, forget about it altogether, it won't help) with the order the leads go into the coils.

The order on the cylinder head (2nd pic) is right. The order on the coils (first photo) is wrong.

The leads from cylinders 2 and 3 go into one coil, those from 1 and 4 into the other. Providing you stick to those pairings, it'll be OK (all else being OK!).

You'll actually see the lead orderr stamped onto the bracket which holds the coil packs on.

Ok cheers mate

I'll fit them as stamped on the bracket, this wasted spark **** is strange.


Quote Originally Posted by fingers99 View Post
For the rest (but do this later!) seeing that there is an earth lead is not hat is required. Remove the lead at both ends, clean it up well, coat ith vaseline or silicone gease and re-attach.

I have removed it at the gearbox end (it took the bloody bolt out too).
All is clean, though not greased up.
Once i get car going i'll cover in grease

For the sensors, test them it a multimeter. The temp sensor should give a steady decrease in resistance from 10000 ohm @ 0C to 200 ohm @ 90C.

I'll check the temp sensor and if its duff i'll fit the new one i received from here

http://www.allcarsallparts.co.uk/pro...oductID=331795


The MAP sensor should give (plug disconnected, engine on) 5volts between A and B, 5 volts between A and earth. It's orth checking that the pipe is clear and that the rubber ends to the hose are not cracked.
Which pins are A & B ?
Or is it just a case of trying each one with a multimeter ?
The vacuum pipe is fine.

I have ordered a new MAP Sensor from here.

http://www.eurocarparts.com/ecp/c/Fi...dfbc24a&000515

So here's hoping it arrives soon.



Quote Originally Posted by Fiat Doctor View Post
As you stated you said the timing seems fine. i would be inclined to check that again. you will prob find it a tooth out either way as these engines will still run but causes problems such as hard to start and wont rev above 2000 rpm. has it ever had a rocker cover gasket fitted ? as iv seen it many times before a bit of old hard black sealer falls down the cambelt area and then causes the belt to jump a tooth and cause all the syptems you have said. The easy way of checking you timing is buy a new cambelt GENUINE and they have two yellow marks which will line up the bottom pulley which should be at 10 o clock and then another mark on the top pulley which will be about 9 o clock. Also remove the rubber cover from the gearbox which is on the top and there be a mark on the fly wheel which lines up on the last triangle mark on the gearbox. then you know its all timed up and all ok.

Also i would avoid jump starting these cars as the engine e.c.u s do not like the spike of voltage. i would just charge the battery off the car.
No rocker gasket change as i'm aware.
I best get on my knees again ad check the timing again although its a **** to do

That'l be the Ecu buggered then as i have just started the car about 10-15 times

Quote Originally Posted by thelad View Post
Why would you spend money on a new cam belt to check your timing? Iv had my mk 1 8valve run a tooth out on the cam belt retarded and advanced and cant notice any change.
I did wander that
Did you have any starting problems ?

Quote Originally Posted by fingers99 View Post
It should be easy enough to check -- the mark for the camshaft is usually clear enough -- the point for the crankshaft is where the casting knecks back down.
Sounds like i'll have fun


How prone are these engines/ecu's for killing coils ?
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Old 15-10-2011   #17
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Re: *HELP* Punto 1.1 55 Sx not starting after plug, coil and lead change

Quote Originally Posted by d1ckyboy View Post
Which pins are A & B ?
Or is it just a case of trying each one with a multimeter ?


How prone are these engines/ecu's for killing coils ?
If a coil pack goes down you'll get a misfire on two cylinders -- the Mk1 ECU is extremely robust, the Mk2 is a pile of rubbish.

I've no pin out for the MAP with me, but I think it's marked.
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Old 15-10-2011   #18
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No it started ok with it out, to check it use a spanner and turn the camshaft to the timing line then check the crank on the bellhouseing,theres a rubber bung to pull then out then you can see the flywheel.
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Old 26-10-2011   #19
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Re: *HELP* Punto 1.1 55 Sx not starting after plug, coil and lead change

Gonna give it a crack changing the timing belt and then i can rule it out (although it looks spot on).


I've also changed the following with new ones and still nothing

MAP Sensor,
Blue Coolant Sensor
TDC Sensor

I never knew the TDC Sensors were so expensive
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Old 26-10-2011   #20
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Re: *HELP* Punto 1.1 55 Sx not starting after plug, coil and lead change

MY MK1 55SX punto`s fireing order as it runs spot on with no problems what so ever



I took the time to take this picture as its hard to understand the firing order when the HT leads get mixed up
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The faster you go the louder it gets! Thats what i like haha
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Old 26-10-2011   #21
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Re: *HELP* Punto 1.1 55 Sx not starting after plug, coil and lead change

Quote Originally Posted by wilko1992 View Post
MY MK1 55SX punto`s fireing order as it runs spot on with no problems what so ever



I took the time to take this picture as its hard to understand the firing order when the HT leads get mixed up
Cheers mate
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Old 28-10-2011   #22
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Re: *HELP* Punto 1.1 55 Sx not starting after plug, coil and lead change

[QUOTE=d1ckyboy;2878019] (snip) I best get on my knees again ad check the timing again although its a **** to do

That'l be the Ecu buggered then as i have just started the car about 10-15 times
[QUOTE]

You dont have to get on your knees to set the timing belt properly. The mark on crankshaft is quite ambiguous anyway.
Get a torch and a mirror and check through the hole in top clutch housing, you will see 0 deg and 5deg arrows in there together with a line on the flywheel.
Attaching jumper leads or push starting car cannot damage the ecu.
To test out the MAP and ecu and O2 sensor, attach a small hose to the MAP and suck very hard on other end, whilst engine is running. The engine will lean off and stop rapidly.
Tony.
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Last edited by reddy4bed; 28-10-2011 at 20:25.
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Old 26-08-2017   #23
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Re: *HELP* Punto 1.1 55 Sx not starting after plug, coil and lead change

Hi there,
Sorry about reviving this thread but did you find and resolve the problem? as I have a car with similar symptons
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Old 09-09-2017   #24
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Re: *HELP* Punto 1.1 55 Sx not starting after plug, coil and lead change

probably only running on 2 cylinders hence the stink of petrol and the 2000rpm rev limit. By now you will have burned out your catalytic converter with all that petrol swishing through. The cure is a new set of coils and a new cat if your MoT is due.
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