UK Car

UK Car Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

UK Car

Mike Honda accord CDTI engine in safe mod no power no engine

Customer Question
Hi mike Honda accord CDTI...
Hi mike Honda accord CDTI engine in safe mod no power no engine warning light no leaks same engine hot or cold engine starts fine
Submitted: 2 years ago.Category: UK Car
Show More
Show Less
Ask Your Own UK Car Question
Answered in 13 hours by:
6/13/2015
UK Auto Mechanic: Matt, Mechanical Engineer replied 2 years ago
Matt
Matt, Mechanical Engineer
Category: UK Car
Satisfied Customers: 22,145
Experience: BEng hons Mech engineering, in auto industry 22 years
Verified
Hello
This could be a lack of fuel pressure from the electrical pump at the tank.
If the connections to this are corroded or damaged then the pump could stop at any time or could not be running at full speed. Check that its relay switches in and out and the relay contacts are clean and bright – replace the relay if in any doubt and do the same for the fuse,
Ideally measure the pressure at the inlet to the main engine fuel pump and if this is low check the pump as described
If both of these are OK then also check the connections to the EGR valve, if either the vacuum pipe of electrical connection are damaged / corroded then the EGR can be on all time which certainly will hurt performance. Its also possible that its a fault with the EGR valve so its worth removing the valve and cleaning it out with brake cleaner, if it looks particularly clogged then replace it.
If this is OK then check the small vacuum lines to the turbo and its connected control solenoid on the bulkhead, any cracks or leaks can give turbo issues and its best to have the boost pressure measured actually measured with a boost gauge to check that the turbo is healthy and that the sensor is reading correctly
If its a variable vane turbo (they’ll be an actuator on the turbo body - but not a wastegate) then check its vacuum pipework as above and check the connections to the diaphragm / solenoid valve
Also worth checking that the glow-plug relay is switching off as they can stick on and leave the glow plugs also on - on some cars this can force it into limp home
Also worth considering adding a bottle of injector cleaner into the tank as a clogged injector nozzle will reduce power and give poor combustion - the next stage on from this is to remove all the injectors and have them ultrasonically cleaned and flow checked
Also check all the high pressure hoses post turbo/s for any split hoses or cracked metal pipes, also check the ends of the intercooler as its not unheard of to pop the end caps off under high boost.
If the above are all OK then try checking for airleaks after the airflow meter, any air dragged in here isn't 'seen' by the ECU and so not compensated for and leans the engine out causing rough running. As its a mechanical fault it tends not to turn on the fault light and you can sometime hear a 'hissing' noise with the engine running.
Check the hose clips for tightness and inspect the trunking for any cracks or splits and also all the vacuum system, the small bore pipes and fittings for cracks and missing parts.
The best way to locate a leak is to have the engine running and warm and then spray lighter gas around each joint in turn. If the engine rev's up you've found your leak.
Work your way through each possible joint one at a time and you should find it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to provide a spraying 'wand' and allow a direct blast of gas into each area, especially those difficult to reach with large implements.
Might also be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a quick fault find if you unplug the meter and run the engine without it.
if the engine condition is the same then chances are the meter or the connection to it is faulty
its also worth cleaning the airflow meter by removing it from the car and spraying the exposed sensor wires inside the tube with a brake or switch cleaner - ensure that the cleaner is one of the old fashioned, non Eco type that does not leave a residue
On no account touch the sensor wires with anything physical as they are extremely fragile
I'd also suggest inspecting the throttle pedal sensor for corroded contacts and damaged wiring
and finally its worth doing a compression test on all cylinders just to ensure the that the base engine is OK
Ask Your Own UK Car Question
Ask Matt Your Own Question
Matt
Matt
Matt, Mechanical Engineer
Category: UK Car
Satisfied Customers: 22,145
22,145 Satisfied Customers
Experience: BEng hons Mech engineering, in auto industry 22 years

Matt is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

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

407 satisfied customers

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

Greg

Greg

Shop Owner

1,309 satisfied customers

17 years Shop Owner /Technician. 27 years experience,

Richard

Richard

UK Car Mechanic

611 satisfied customers

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

Matt

Matt

Mechanical Engineer

22,145 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

640 satisfied customers

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

< Previous | Next >

Related UK Car Questions
Renault kangoo while driving it won't change gears, also it
renault kangoo while driving it won't change gears, also it only happens when the square peice on the dash goes away … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
The handbrake on my 2004 jazz is rubbish, i have replaced
The handbrake on my 2004 jazz is rubbish, i have replaced the callipers and the pads and discs, and its still rubbish … read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
2011 Mondeo MK4 1.6l tdci. Serial number/unlock code needed
Hi 2011 Mondeo MK4 1.6l tdci. Serial number/unlock code needed for ford 6000cd radio. Lost my radio code for the above car after battery change. Got the key code card out of the ford docs pack and it'… read more
Gallagher99
Gallagher99
Ford Senior Technician
Vocational, Technical or Trade Scho
754 satisfied customers
I have a 94 jeep zj and the Vic just randomly died worked
i have a 94 jeep zj and the Vic just randomly died worked fine a week ago, faulty soldering? … read more
sprinkles08
sprinkles08
Technician
High School or GED
11 satisfied customers
My 2007 focus: the heater intermittently pushes out cold
My 2007 focus: the heater intermittently pushes out cold air. Didn't work for first few minutes this morning, but after driving for a few minutes it kicked in?? … read more
Kevin
Kevin
workshop foreman /master tech/mot tester
0 satisfied customers
I have a manual 2011 kia sportage and they just replaced the
Hi there i have a manual 2011 kia sportage and they just replaced the clutch but now the car doesnt start ita a keyless push start car and i am out of ideas as to what to try … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have a 2016 Kia Picanto. As is my routine, I parked my car
Hi Pearl. I have a 2016 Kia Picanto. As is my routine, I parked my car in my driveway on Sunday afternoon. When I wanted to do drive to work on Monday morning, the entire back window was shattered and… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
The injector light is on, the turbo is spooling but it is in
the injector light is on, the turbo is spooling but it is in limp mode, had an engine clean at the weekend and he said it is all working fine but there is a lot of back pressure so he thinks def needs… read more
Robert
Robert
Mechanic/Roadside assist/Garage Owner
Vocational, Technical or Trade Scho
1,643 satisfied customers
Ac not working.... 2010. Doing myself yes...i checked all
Ac not working.... JA: Have you checked the Freon level? Customer: Yes JA: What is the model/year of your Toyota? Customer: 2010 JA: Are you fixing your vehicle yourself? What have you tried so far? C… read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
893 satisfied customers
Throttle potentiometer ,coherence between track 1 and track
throttle potentiometer ,coherence between track 1 and track 2. -intermittend. intternal control module access memory error.-intermittent. incorrect throttle position .intermittent … read more
Eurocar Inc
Eurocar Inc
Master Audi/VW Tech
Associate Degree
1,773 satisfied customers
Air con does not work. Has problem for 2 months now,Has
Yes I'm an ex honda tech, found the Air con clutch relay missing negative signal from ecm … read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
Looking for Nissan Terrano advice 2.7Tdi turning over, but
Looking for Nissan Terrano advice 2.7Tdi turning over, but not firing … read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
I have a 2013 Volvo xc60, and I have some issues with the
Hi! I have a 2013 Volvo xc60, and I have some issues with the power operated tailgate. It opens all the way, but then it goes down again, about 20 cm's. Is there a fix for this? Is there a reset proce… read more
Kevin
Kevin
workshop foreman /master tech/mot tester
0 satisfied customers
Ihave a np200 1600 am trying to find the starter relay can
hi guys ihave a np200 1600 am trying to find the starter relay can you help … read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
I have a '99 justy with 1.3 8 valve engine that happens to
i have a '99 justy with 1.3 8 valve engine that happens to stall at high rev's like when i'm going 120km per hour (for a long time) or just accellerating for a wille, the funny thing is that a few sec… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have an Mitsubishi 3000GT-99 with start issue. Have
Hi Doug, I have an Mitsubishi 3000GT-99 with start issue. Have checked the crank angle sensor and the cam sensor with iscilloscope and both show square wave pattern as in the workshop manual, but the … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Renault Traffic 1.9DCi 74 kW 2001. Engine fault code 181A?
please Renault Traffic 1.9DCi 74 kW 2001 . Engine fault code 181A? … read more
Matt
Matt
Mechanical Engineer
22,145 satisfied customers
F250 fuel pump timing 4.2 mwm turbo diesel. Original. 2005.
Engineer reckoned the engine and struggling with fuel pump timing … read more
tim37857
tim37857
Mechanic
High School or GED
71 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.

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