UK Car

UK car repair questions? Ask a mechanic for answers ASAP

Connect one-on-one with {0} who will answer your question

This answer was rated:

Combo: Hi i have a p0100 maf sensor curcuit fault .Combo…

Hi i have a p0100...
Hi i have a p0100 maf sensor curcuit fault .
Combo 1.3 cdti 2007 runs on 1.2.3. But 4 recieves a pulse at injector but not responding .
Show More
Show Less
Ask Your Own UK Car Question
Answered in 3 hours by:
12/5/2014
UK Auto Mechanic: vauxdoc, vauxhall master tech replied 7 years ago
vauxdoc
vauxdoc, vauxhall master tech
Category: UK Car
Satisfied Customers: 1,192
Experience: over 25 years from viva to vectra
Verified
Welcome to Just Answer,

The MAF code may be a red herring as the engine is obviously running poorly.

The most common thing on this engine is the fuel injectors, swap over no. 3 and no. 4 injectors and if the misfire moves to no.3 then you will know that is is due to that injector, you can then replace it.

If the misfire remains at no.4 then you need to test the compressions, they should all be about 300 psi, if no.4 is down then you will need the cylinder head removing to find thee cause.

But from my experience of this motor it will probably be a faulty injector.

I hope this helps, best regards,Customer
Ask Your Own UK Car Question
Customer reply replied 7 years ago
Hi thanks for the advice .
Failed to mention . Ive moved injectors still the same . Running on 3 cylinders nocking on no 1 slightly . So head off checked timming tention . Its good. Took 1234 pistons out check rings for damage all ok . Used alignment tool to retime locking cams. new headgasket . Visual check on head . Followers ok etc and good lube . Got all injectors exchanged for reconditioned as tips were burnt and 2 i had tested were faulty .
Iv done a live data and only values out were load_pct
They were droping from 10/15 straight down to 0.0 then back again coinciding with the rough idle .
Which took me back to the maf sensor fault as it is the only one showing.
Ps the exhaust on the van has a de-cat and has done 60 k its ex BT so thaught i got a good van at first . Thanks again for the help.
UK Auto Mechanic: vauxdoc, vauxhall master tech replied 7 years ago

Wow that is a big fail to mention LOL.

I have had a couple of engine ECU's go down due to water contamination which affected the injector switching transistors and the caused misfires, so as most of the other probable causes have been ruled out it may be best to have it sent away for testing.

Here is a link to a company that will test and repair for exactly this fault...http://www.ecutesting.com/vauxhall/vauxhall-corsa-cdti-ecu.html

vauxdoc
vauxdoc, vauxhall master tech
Category: UK Car
Satisfied Customers: 1,192
Experience: over 25 years from viva to vectra
Verified
vauxdoc and 87 other UK Car Specialists are ready to help you
Ask your own question now
Customer reply replied 7 years ago
HiCustomerUpdate !!Replaced ecu with one off a 09 salvage .Changed ecu , c.l.control box . Imob ring. Clocks .key Started car runs a lot better turbo started working for the first timeChecked codes p0110 ,p0162 ,p0100Cleared codes All returned when ignition key on engine not running SO investigated via internet common symptom of bad/crossed earth on maf.Disconnected loom from temp sensor right round to fuse box pulled back sheath and check wires plus earth point .bumper/ headlights out.Maf sensor gives 5v disconnected but drops to 2.7v once plugged in .Disconnected earth redirected new earth still no joy.Im now thinking maybe the old ecu fried the both maf sensors ?Any ideas would be appreciated thanks againPs the ecu is located behind passenger headlight its the revised model
UK Auto Mechanic: vauxdoc, vauxhall master tech replied 7 years ago
How does the motor run now?
Are you saying that these codes are present with the engine not running ?
Are you sure about P0162 as I can't see it on the VX database
Ask Your Own UK Car Question
Customer reply replied 7 years ago
Hi its running on 3 cylinders pulls a lot better and nocking from no 1 piston has gone .
Pedal tested today
P1620. 5v ref circuit to cim ??
P1612. Speed connection loose (i will check connection on clock)
P1613. Clock poor connection
P0110. Intake air temp circuit A
P0100. Maf sensor circuit A
P0203. Injector 3 missfire ( will check but i was messing with connections so should clear fault )
Oh and yes if i clear codes p0100 p0110 p1620 come straight back without restarting the van .hope this info helps.
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with an uk auto mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask vauxdoc Your Own Question
vauxdoc
vauxdoc
vauxdoc, vauxhall master tech
Category: UK Car
Satisfied Customers: 1,192
1,192 Satisfied Customers
Experience: over 25 years from viva to vectra

vauxdoc is online now

Related UK Car Questions
My 2005 cdti Vauxhall combo Will not start hot or cold
My 2005 cdti Vauxhall combo Will not start hot or cold unless I use easy start … read more
Matt
Matt
Mechanical Engineer
Bachelor's Degree
5,004 satisfied customers
Nightmares! Its a cordovan 1.3 CDTI Corsavan** I am. Im
I am. Im getting P0100 and P0110 so i have got a man sensor and replaced, still the same fault Tried some EGR cleaner down the intake, still same fault Had key in pos 2 and voltage checked all cables nothing seemed abnormal … read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
38,504 satisfied customers
I am having a lot of trouble with my 2006 1.3 combo cdti.
Hi, I am having a lot of trouble with my 2006 1.3 combo cdti. The car sign with the spanner through the middle keeps coming on and the van will not rev past 3000 rpm, has no power and sometimes will n… read more
martin jones
martin jones
UK Car Mechanic
Vocational, Technical or Trade Scho
647 satisfied customers
Astra h van: Hi there, my astra h van wont start (1.7 cdti
Hi there, my astra h van won't start (1.7 cdti 57 plate), I have run some tests and found on cranking, I have no electric pulse going to injectors... I do have pulses going from crank and camshaft pos… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
38,504 satisfied customers
astra: Hi we have a 56 plate astra 1.3 cdti which wont start
Hi we have a 56 plate astra 1.3 cdti which wont start unless fuel return blocked, saw you have had dealings with the same fault, did you resolve this… read more
Rob
Rob
UK Car Mechanic
Vocational, Technical or Trade Scho
823 satisfied customers
1.3 CDTI Combo Van: Have a 57 plate Vauxhall Combo 1.3 CDTI
Have a 57 plate Vauxhall Combo 1.3 CDTI van. Got caught in a flood the other day. Held it on the starter in first gear to get it through after it stalled. Finally got it through the flood area and man… read more
Pete
Pete
Automotive Diagnostic Specialist
General auto certifications
38,504 satisfied customers
Combo 1.3 CDTi: Hi, I have a Vauxhall Combo 1.3 CDTi van that
Hi, I have a Vauxhall Combo 1.3 CDTi van that has started to cut out. Sometimes it cuts out when car get to 2000 revs in first gear or it gets to second gear and then cuts out, Same thing happens in 3… read more
Mike
Mike
Proprieter / Diagnostic Technician
High School or GED
19,815 satisfied customers
we have a vauxhall combo 1.3 cdti with fault code p0400 egr
we have a vauxhall combo 1.3 cdti with fault code p0400 egr valve circuit, changed the egr valve but the fault code came back the same the vehicle drives fine but our customer is worried about the mal… read more
Billy
Billy
Trainer
Bachelor's degree
5,932 satisfied customers
vauxhall Combo 1.3 cdti 2000 van 56 reg plate, 56k..miss..light comes
Hi I have a Vauxhall Combo 1.3 CDTi 2000 van 56 Reg plate, 56k on clock. It has a Z13Dt Engine and has the following problems:- White/Blue Smoke after warm up about 1mile Slow pick up at low revs, rou… read more
Greg
Greg
Shop Owner
Vocational, Technical or Trade Scho
1,562 satisfied customers
Default Wheel size of Vauxhall Corsa 1.3 CDTi Club, 2007?is
Default Wheel size of Vauxhall Corsa 1.3 CDTi Club, 2007? is it 14" or 15"? What's the wheel size delivered from factory? I have not changed it so it must be same… read more
Mike
Mike
Proprieter / Diagnostic Technician
High School or GED
19,815 satisfied customers
vauxhall combo 1.3 cdti..driven..lost power..it wont start..cranks
Vauxhall combo 1.3 cdti - 2007 Hi, Vehicle was being driven and just lost power and stopped and now it won't start anymore. It was just as if it ran out of diesel fuel. The engine now cranks okay but … read more
Rob
Rob
UK Car Mechanic
Vocational, Technical or Trade Scho
823 satisfied customers
vauxhall combo: HI I also have a vauxhall combo 1.3 Cdti hard
HI I also have a vauxhall combo 1.3 Cdti hard starting when left for a while and sometimes if I unplug the air mass meter it starts better any ideas thanks… read more
Matt
Matt
Mechanical Engineer
Bachelor's Degree
5,004 satisfied customers
Vauxhall..drives..untill..the idle becomes lumpy and it smokes badly
Hi, I have a 2007 1.3 cdti vauxhall combo. It always starts well and drives well untill hot (85 degrees plus) when the idle becomes lumpy and it smokes badly. If I switch it of for a while it is ok fo… read more
Mike
Mike
Proprieter / Diagnostic Technician
High School or GED
19,815 satisfied customers
Hi just scanned my corsa combo 1.3 cdti timing tensioner..rebuild..van
hi just scanned my corsa combo 1.3 cdti timing tensioner collapsed bought it to rebuild all done no codes logged except immobilizer program the van turns over but wont fire got security card can you p… read more
Trevor
Trevor
UK Car Mechanic
Vocational, Technical or Trade Scho
853 satisfied customers
crew..van turbo is not kicking in straight away..reaches
I have a 2005 combo crew van 1.7 cdti which has a power problem? It seems like the van turbo is not kicking in straight away until the engine reaches 2000 revs? It is sending some dirty fumes out the … read more
Bill_Crosby
Bill_Crosby
City & Guilds
2,608 satisfied customers
vaxuhall combo van on a 2005 plate,it has 1.3 cdti..drives fine
hi i have just brought a vaxuhall combo van on a 2005 plate,it has 1.3 cdti ecoflex engine and done 23500 miles.the problem is when i go to start it up it takes a while for the engine to start.when it… read more
vauxdoc
vauxdoc
vauxhall master tech
Vocational, Technical or Trade Scho
1,192 satisfied customers
I have purchased a Vauxhall Combo Crew van 2006 1.3 cdti
Hello could you help me? I have purchased a Vauxhall Combo Crew van 2006 1.3 cdti ex post office.After about 2 miles the engine warning light comes on .Stop & restart the engine warning light stays of… read more
Bill_Crosby
Bill_Crosby
City & Guilds
2,608 satisfied customers
Vauxhall..light flashes..limp mode {wont go above 3000rpm..same thing
55 Plate vauxhall combo 1.3 cdti, drive down the road after about 10 secs the spanner light flashes up and then goes into limp mode {won't go above 3000rpm) switch off and start again same thing happe… read more
John
John
Vauxhall Technician
Vocational, Technical or Trade Scho
130 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Marty

Marty

European Car Expert

470 satisfied customers

ASE & Bosch Certified Master Tech. Over 30 years experience.

Greg

Greg

Shop Owner

1,562 satisfied customers

17 years Shop Owner /Technician. 27 years experience,

Richard

Richard

UK Car Mechanic

677 satisfied customers

12 years as a technician at a Ford and Jaguar dealer Ford and Jaguar factory certified

Matt

Matt

Mechanical Engineer

5,004 satisfied customers

BEng hons Mech engineering, in auto industry 22 years

Trevor

Trevor

UK Car Mechanic

853 satisfied customers

NVQ 3, Modern Apprenticeship, MOT Tester, 15+ years experience diagnostic technician

Rob

Rob

UK Car Mechanic

823 satisfied customers

city and guilds level 1 2and 3. mot tester , 28 years experience set up training college in afghanistan

martin jones

martin jones

UK Car Mechanic

647 satisfied customers

25 years as a mechanic and mot tester, owned own business for 10 years city and guilds trained

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x