zafira problem

[short360uk]

Hi, new to the garage usually in the sat forums. dont know much about cars other than the google searches ive done on this problem. bought a 2008 zafira 1.9cdti sri 150 about 3 weeks ago and on sunday the the spanner light came on and went into what i think is limp mode got it home restated the car and drove it everthing ok for about 5 min then did it again. it done this a few times, now the spanner light stays on all the time but does not go into limp, i have cleaned the egr the manifold it bolts too and the thrust sensor. done the pedal trick and gives ecn 242f25 error i have read this is dpf related but dont know where to go from here
thanks in advane for any help

[mtechno]

I dont know that code! where did you get it from? most obd system scan tools would come up with p codes. Common limp home fault on you vehicle can be caused by crankshaft sensor but you need to scan system to find out where to start, dpf blocked can also be problem, egr valve normally require blocking off or replacement rather than just cleaning

[short360uk]

cheers for the reply. the code come from pressing the brake and accelerator together but i found an error code list on another site and i think its the p242f. I'm also getting an opcom delivered tomora

[mtechno]

Yes opcom is a nice tool, I found a translation for you pedal code :Replace ecn with p & remove last two digits
P242F Diesel Particulate Filter Overloaded C-027

[short360uk]

i just been to the shop and did the pedals again and its showin another code aswell now i found the pedal code translations and its this: P2452 Particulate Filter Pressure Sensor High Pressure B-020. i take this is because the dpf is so overloaded? is there an easy remedy for this
cheers

[mtechno]

here is a useful link for vauxhall codes, I think that code may be due to faulty egr valve possibly stuck open your op com should help verify that
OPCS Forum • Pogledaj temu - Dijagnostika, pitanja i odgovori... (http://www.opelclub.rs/forum/viewtopic.php?f=37&t=51072&start=300)

[mtechno]

I think the easy remedy would be to try & blank off egr valve

[cgscott]

MAF SENSOR. I changed mine on my 1.8 petrol. Runs as sweet as a nut now.

[mtechno]

Pay careful attention to the full interpretation of the codes:
P2452 Particulate Filter Differential Pressure Signal not Plausible with Mass Air Flow B-026
P2452 Particulate Filter Pressure Sensor High Pressure B-026
P2452 Particulate Filter Pressure Sensor High Voltage B-026
P2452 Particulate Filter Pressure Sensor High Voltage C-032
P2452 Particulate Filter Pressure Sensor Hose Line Malfunction B-031
P2452 Particulate Filter Pressure Sensor Hose Line Malfunction B-026
P2452 Particulate Filter Pressure Sensor Low Voltage B-026
P2452 Particulate Filter Pressure Sensor Low Voltage C-032
P2452 Particulate Filter Pressure Sensor Pressure not Plausible with Barometric Pressure

[mtechno]

The purpose of the egr valve is to allow unburnt exhaust gasses to reburn in the engine to reduce nitrous oxides expelling into the atmosphere which generally occurs above 1500rpm at lower rpm the egr valve stays closed. If the valve sticks shut it causes no problem apart from brining on emmission light becase it has not opened. If it sticks open it causes a lot of low engine speed running & emission problems; it can also block up you dpf because the engine cannot cope with sooty gases at low engine speeds. In other words the egr is beneficial to the environment but not to you engine, because of the knock on effects of faulty egr, you will probably have to clean or regen dpf

[smirnoff_rules]

sound like the egr is stuck open to me . its only 2 bolts to undo and check and 2 small water pipes to remove from car,, the bolts are spline heads but a 11 0r 12mm socket will fit , if its open only a slight bit then thats your problem .. some people waste there time and clean them ,, l wouldnt bother they only come back . GSF stock them for less money than the agents and ask for an OE one ,

but only remove when cars playing up tho or u wont see it stuck open

[short360uk]

if i blanked off the egr valve would it have to be deleted from the ecu

[mtechno]

Yes long term it would but short term it would stop fouling dpf until you have resolved all the associated problems

[mastaflex]

i think it's time make a real diag with appropriate tool.
and if it DPF , you can try to make a forced regeneration to solve your problem.

[short360uk]

thanks for the all the replies, hopefully my opcom comes today. would i only need to force a regen if opcom shows its over a certain percentage

[short360uk]

mdrove the car today, spanner light changed to engine light then a massive loss of power to the point where engine made alsorts of loud noises and cut out and wont start again also there was a strange whistling noise coming from the front exhaust joint. got towed home and opcom had arrived plugged in and got theese error codes
p2279-5b
p242f-75
p242f-f8
p2454-0f
all these codes had no DTC or something after them

[smirnoff_rules]

p2279-5b is air intake .. sounds like egr stuck fully open

check all air pipes first tho

[short360uk]

removed recleaned egr this mornin before i took for a drive it seemed to be opening and closing fine. car now starts but with black smoke and wont rev over 2500 in neutral. also checked maf sensor and intake this mornin

[smirnoff_rules]

cleaning never works for long as l said in a different post . u need to remove and see if its stuck open


thats my 30 years worth ''''

might not be but might well be .. common fault done lots

[cgscott]

Did you make sure all the breather hoses etc were back in place?

[smirnoff_rules]

Did you make sure all the breather hoses etc were back in place?

edited




Shit misread first post lol thought is was tdi not cdti ...still the same have to see inside and if the plunger is stuck out

[short360uk]

the egr was opening and closing fine when had taken it off this morning, spayed and cleaned it with carb cleaner

[smirnoff_rules]

the egr was opening and closing fine when had taken it off this morning, spayed and cleaned it with carb cleaner

was car playing up when u took it off ?

[short360uk]

yep car was playing up. just cleared all error codes, now i got this P2452 Particlate filter pressure sensor not plausible with baromtric pressure (OF)-present. and dpf is 84% saturation is this too high

[Ashraf6119]

Hi

Check the Plastic Pipe from the DPF Sensor you will see its broken near the clamp where its hooked to the body (Look Carefully) you will see...........if the pipe is good then just change the Sensor.........And then take it for a long drive for force regen as 84% saturation is this too high.............

If force regen is successful then make sure you change the engine oil and oil filter

[wizz2c]

It def sounds like your DPF is fully loaded and probably needs to be cleaned off the car esp if your car is making noises and has a serious loss of power. Also worth checking the intake manifold flaps to make sure they still move ok,they get clogged as does the actual manifold Thus causing poor air intake thus causing DPF the soot up earlier. You will need opcom or similar to reset the DPF soot level once cleaned. I pretty much doubt a regen will work if the DPF is that bad but if it does it may be short lived.

Hope this was helpful

[short360uk]

Yeah i think i've come to the conclusion that it is fully blocked cos that whistling noise coming from the exhaust joint just in front of the dpf must be pressure build up of exhaust gasses. been on the phone to nic from tunednstyled and said he would remove dpf delete it from ecu and do a dual remap for ?250 so im thinkin this is the way to go from here

[wizz2c]

Yeah i think i've come to the conclusion that it is fully blocked cos that whistling noise coming from the exhaust joint just in front of the dpf must be pressure build up of exhaust gasses. been on the phone to nic from tunednstyled and said he would remove dpf delete it from ecu and do a dual remap for ?250 so im thinkin this is the way to go from here



Good choice get rid once an for all. Price is reasonable too.

[wizz2c]

Double posted. sorry