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Old 29-04-17, 10:37 AM   #1
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Exclamation 308 starting problem

Got a 308 1.4 petrol (2008) that died while driving. Recovery numpty said Cam Belt tensioner loose!
1. not got a cam belt
2. timing chain not visible (especially without actually breaking open his tools or diag kit)
Just wanted to charge for the recovery. Dash said "Economy Mode". I tested with generic ODB tester - "camshaft sensor" pending. Checked wiring, got power etc. Changed senor but got the same code. Found Vacuum pump dog gear broken and oil leaking from pump. Replaced. Now, no reoccuring code when cranked but will not start. Tried Parc-Shunt fuse remove and this cleared "Eco Mode"
Petrol pump sounds like working
Cam shaft rotates when cranked
Battery putting out 11.7 volts
Car will not fire up - where to look next. Any ideas?? Thinking of buying in Planet Peugeot kit but cant help but think should be a simple fault!!

Last edited by Dadgarage; 29-04-17 at 10:40 AM.
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Old 29-04-17, 08:41 PM   #2
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When it died, did it cut out instantly or did it start stumbling [missfiring/lose power] then die?

Main things to firstly TEST for [not sounds like working...!] in a petrol motor are spark and fuel.

Spark is normally easy. Also, remove all plugs and check colour and also see if they are wet with fuel or bone dry.

A proper fuel test in an injection motor not so easy as you need to verify pressure and flow. So you need a pressure gauge and a container/stopwatch for measuring flow. Or, if you had PP2000/diagbox, you could check this using live data while cranking. In the absence of pressure gauge/PP2000, you can check flow rate from pump meets spec. If it does, it suggests things might be ok with the fuel supply system, but this is not guaranteed.

You can verify the injectors are firing while cranking by using an automotive stethoscope [cheap on ebay] and listening to each one of them individually while cranking. They will click regularly while cranking if they are working.

If crank/cam sensors have failed, you will mostly not get any spark and fuel, so, if you dont find fuel and spark in the above testing, check both crank and cam sensors. As you have already changed the cam sensor with no effect, you would need to target the crank sensor. But the swapped out cam sensor may also be faulty, so dont rule it out..

If all of the above check out, you will need to check your cam timing.
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Old 21-05-17, 06:55 AM   #3
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So pulled all plugs and seem in good condition, also appear wet. Checked for spark and no spark present.
Invested in PP2000/Lexia / Diagbox. Eventually managed to load it to PC and work it out. Only evident code is on BSI when I remove battery for recharge.although from what I can see via tinternet, this is normal and once cleared only reappears when remove battery. All else seemingly ok.
If crank senor (and others) faulty surely this should show on PP2000, although I know not where!!
Still no spark.

I will go play with crank sensor next but feel this should be evident on diagnostics if naff.

Any bright Pug owners encountered similar frustrating search for a spark?
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Old 21-05-17, 07:54 AM   #4
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Your battery voltage of 11.7v - was that whilst cranking?
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Old 21-05-17, 08:10 AM   #5
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I have since put a new battery on this but still would not start. However, the 11.7v was idle with ignition on but not running or cranking.
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Old 21-05-17, 10:05 AM   #6
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Planet can do much more than read codes !

Go into parameters 1 parameters 2 and you will see lots of things that can be checked while cranking it will tell you if cam sensors are reading it will tell you cranking speed which tells you crank sensor is working
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Old 21-05-17, 12:36 PM   #7
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So have been looking at parameters in PP2000. Sensors appear to be ok. Getting rpm change when cranking (CPS) and Oxygen / CAM value.
What I do not appear to get on cranking is Alternator excitation voltage (stays 0 as does the alternator charging voltage) and battery voltage drops from 12.8 to zero/ 10.7v

Would this indicate an alternator fault?
If so, would this prevent firing of spark?

Sorry to appear vague but once told all questions are good questions

Last edited by Dadgarage; 21-05-17 at 01:13 PM.
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Old 21-05-17, 02:25 PM   #8
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Alternator wont show anything till engine is running it wont stop a spark either

Key in ignition turn on turn off leave key in ignition open door does car warn you yes or no ?
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Old 21-05-17, 02:54 PM   #9
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Replacing the battery could have contributed to the non-start if the old battery was disconnected incorrectly.

Do the quick test as reliable406 suggested, that'll confirm if the BSI is happy or not
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Old 21-05-17, 07:23 PM   #10
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Yes it warns me with a series of bleeps. Also PP2000 parameters show BSI matched ok and no faults.
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