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 Posted: Sun Apr 17, 2011 1:43 pm |
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Joined: Apr 16, 2011
Posts: 4
Trade Rating: 0
Location: Liverpool
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Hi
Ive just joined the forum and have a strange problem with my 206.
Was fine when I went to work, parked it up, came back 6 hours later, started it and was misfiring and shaking badly, no engine light on. The breakdown fella said it was probebly the head gasket gone so I got them to bring it back home.
Ive changed the head gasket, checked the cylinder compressions and all are ok but its still misfiring and shaking the same way as it was before. Ive tried to get it down to a certain cylinder by disconnecting the injectors one at a time but there is no major change in the engine, also used a known dead spark plug in each cylinder but that was inconclusive.
Have tried to check sensors by disconnecting them one at a time:
Green coolant temp sensor(top of thermostat housing): Engine runs a bit faster.
Blue coolent sensor (under thermostat housing): No change
o2 sensor: no change when cold, slight change when hot.
MAP sensor: engine dies.
Air temp sensor (in throttle housing): No change.
Did not check throttle sensor or idle stepper moter.
Did a quick check of the coil pack and it gives sparks at the plugs, engine still misfiring even with sensors unpluged.
Is there anything that could be causing it to misfire and shake badly at idle.
Any help would be appreciated.
Cheers
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Posted: Sun Apr 17, 2011 2:02 pm |
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Joined: Feb 07, 2010
Posts: 898
Trade Rating: +5
Location: Melton Mowbray Leicestershire
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Your problem seems very similar to mine that ive had recently, went to work fine got back in to come home 4 hours later with a slight misfire, which went once it was revved, same thing happened the next couple of days untill i left it a day without starting, then came to start it and was misfiring majorly so checked coolant and noticed the headgasket had failed so thought it was just that that was causing it. Once it was back together again it was still present.
I good way i used to find out which cylinder was misfiring was to take off the exhaust manifold heat shield and then pour some water on the manifold and see where the water doesnt evapourate from. In my case was number 4 cylinder which was then narrowed down to a faulty injector. To double check i tested the resistance and sure enough there was a faulty injector.
My engine is a 1.4 8valve so its quite simply to do the above, not sure what yours is but i would suggest trying it the above as its quick and simple.
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Posted: Sun Apr 17, 2011 2:02 pm |
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Joined: Nov 21, 2010
Posts: 132
Trade Rating: 0
Location: Kettering
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Have you checked fuel supply? Could be blocked fuel filter or condensation in the fuel tank?
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Posted: Sun Apr 17, 2011 2:10 pm |
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Joined: Feb 09, 2010
Posts: 405
Trade Rating: +1
Location: Glasgow / Welling
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Cam sensor is a common one. If you take that out it wont run well at all and eventually wont start
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| 206 180 rally car in progress. I may not be perfect but there are parts of me that are f£%$ing brilliant | |
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Posted: Sun Apr 17, 2011 5:22 pm |
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Joined: Jan 24, 2011
Posts: 855
Trade Rating: +19
Location: Plymouth, Devon
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Piston liner may have dropped..the car will run okay from cold but if you turn off and turn back on it's like a head gasket has gone but it's worse! I hVe just had this problem with mine sorted!
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Posted: Mon Apr 18, 2011 2:48 am |
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Joined: Apr 16, 2011
Posts: 4
Trade Rating: 0
Location: Liverpool
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Hi
Thanks for the replys.
I should of said its a 1.1 injection. When the head was off I did visually check the liners for damage but they seemed fine, also checked valves and the head for any obvious sines of cracks etc.
Will try water on the exhaust manifold to see if I can limit it to a cylinder, then fuel tank / filter, will then take the injectors out and test there resistance, will post back results.
May be connected or not, this problem happend not long after putting £30 petrol in at local station ?
Cheers
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Posted: Mon Apr 18, 2011 2:52 am |
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Joined: Jan 24, 2011
Posts: 855
Trade Rating: +19
Location: Plymouth, Devon
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Dirty fuel? I have a 1.1 injection too! I had a vvid water noise in the passenger footwell of pumping coolant around the engine block I'd check again because you may skin your head ad it may no even need it!:(
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Posted: Mon Apr 18, 2011 2:53 am |
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Joined: Feb 07, 2010
Posts: 5575
Trade Rating: +33
Location: Moscow
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How reputable is this Petrol station?
My Dad but some in his truck, that started to play up... Turns out that the fuel station was watering the fuel down and it was causing problems...
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Posted: Mon Apr 18, 2011 5:11 am |
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Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage
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I ran mine with the cam sensor unplugged and it ran totally fine.
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| 2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible. | |
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Posted: Tue Apr 19, 2011 10:21 am |
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Joined: Apr 16, 2011
Posts: 4
Trade Rating: 0
Location: Liverpool
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Update:
Hi
I removed all the injectors today, tested them with a multimeter and they all read 14.5 ohms. I put them back into the fuel rail, put carb cleaner in and used a bike pump to put some preasure in the fuel rail filled with carb cleaner.
Then with aid of a 12V battery manually turned on each injector one by one, injectors 1,2 and 3 sprayed great but injector no 4 was clearly blocked, spray was very weak and split into 2, did try to unblock it by reverse cleaning it but it was a no go, orded a new injector from local motor factors and got 8 new o rings off ebay. will fit and update tomorrow.
Testing the injectors in this way wasent the safest thing ive done, but hopfully ive found the fault.
Cheers
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Posted: Wed Apr 20, 2011 12:35 pm |
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Joined: Apr 16, 2011
Posts: 4
Trade Rating: 0
Location: Liverpool
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Solved
Hi
Got new injector and fitted it today, engine now works perfect again.
Thanks for all your replys
Cheers
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Posted: Fri Feb 01, 2013 9:12 am |
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Joined: Feb 01, 2013
Posts: 3
Trade Rating: 0
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hi i had the same problem no my 206 1.4 GLX i found the problem was a fuel injector so i replaced all 4 plus the rail now car is running like new i hope this works for you it worked for me 
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Posted: Fri Feb 01, 2013 2:53 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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I love the fuel injector test that you did. not the safest but not high risk if you know there is a danger and keep the fuel spray away from you and any source of ignition. I will remember that one.
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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Posted: Fri Feb 01, 2013 3:03 pm |
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Joined: Feb 07, 2010
Posts: 2949
Trade Rating: +6
Location: Athens, Greece
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That injector #4 always cocks-up.
Supossedly it's the drip from the screen washer jet but I don't buy it.
| kandlbarrett wrote: |
| I love the fuel injector test that you did. not the safest but not high risk if you know there is a danger and keep the fuel spray away from you and any source of ignition. I will remember that one. |
Check this out as it works perfect and is safe: www.youtube.com/watch?v=7aT4S1lIBAY
I've been doing this for quite a while and it works miracles.
I have made a simple mini-loom with button, psu and both types of PSA connectors used for injectors.
Use gloves when doing this or bitterly regret it.
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| 1.4i, 2001, 3-door, China Blue
Repair safely - Drive safely | |
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Posted: Fri Feb 01, 2013 3:19 pm |
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Joined: Aug 04, 2011
Posts: 1343
Trade Rating: 0
Location: Swindon
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So simple. Thank you.
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| Morris 1000, Austin 1100, Escort Mk2, Fiat Mirafiori, Alfa 33, Alfa GT Junior, Alfasud, Alfetta GTV (2x), Alfa 164 3.0 V6, Alfa 164 2.0, Alfa 75 V6, Alfa 156 2.4 (diesel remapped 200bhp), Alfa 147 GTA (3.6 295bhp), Alfa 159 (diesel remapped 245bhp 300ft.lbs @ 2500rpm)
Why isn't my daughter an Alfaholic? | |
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