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Ford Focus 1.4 2008 - Code P1071 system lean bank 1 #

Posted by Anthony Walsh on July 11, 2011, 10:43 pm

Year of Manufacture *: 2008
( Optional ) Engine Code or CC: 1.4 zetec

Hi

P1071 system lean bank 1
eml coming on after 60mls or so
checked for intake and exhaust leaks
replaced front o2 sensor and cat

Anthony

Re: ford focus p1071

Posted by Pete Mutlow <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT1569' width='330' height='300' border=0 style='border:none;'> on July 11, 2011, 11:37 pm, in reply to "ford focus p1071 "
Peter Mutlow

Evening Anthony,

Too little info here. Can you post the fuel trims, 4 gas check at idle and fast idle. What is the post cat Lambda sensor reading and how the vehicle is running.

Regards

Pete M

Re: ford focus p1071

Posted by Gwyn Lewis Williams <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5354' width='330' height='300' border=0 style='border:none;'> on July 11, 2011, 11:40 pm, in reply to "ford focus p1071 "
Gwyn Williams

Hi Anthony, We need more info here, you have given very little to work on, such as tests done, equipment used, emission readings etc. You need to use Peter's guide to posting at the top of each page, regards, Gwyn

Re: ford focus p1071

Posted by Gwyn Williams <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5354' width='330' height='300' border=0 style='border:none;'> on July 11, 2011, 11:44 pm, in reply to "Re: ford focus p1071 "
Gwyn Williams

Hells bells Pete, late tonight! Suppose that post brought back memories?! Thought I would reply before the inevitable storm of sarcasm! trust you are well, regards, Gwyn

Re: ford focus p1071

Posted by Pete Mutlow <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT1569' width='330' height='300' border=0 style='border:none;'> on July 12, 2011, 10:54 am, in reply to "Re: ford focus p1071 "

Hi Gwyn,

Looks we are both thinking along the same lines and your post crossed mine. No idea if Anthony is new here but as you say the paucity of information given might have provoked the usual sarcastic comments. As you quite rightly say though, it is important that the guidelines on posting are closely followed to illicit interest and helpful comments.

Am fit and well thanks and trust you are too.

Kind Regards

Pete

PS. Reckon this topic would be better placed in the Emissions forum.

Re: ford focus p1071

Posted by Dave Hill <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT2783' width='330' height='300' border=0 style='border:none;'> on July 12, 2011, 9:03 pm, in reply to "Re: ford focus p1071 "

Hi Pete & Gwyn

I don't know about the "inevitable storm of sarcasm", but I am genuinely interested to understand the thought process that lead up to the replacement of the catalyst.

God knows these cats are fragile, but I think this one was replaced without justification. The worrying thing is that a genuine cat is so expensive, that a cheap after market cat was most likely fitted. If so then the dreaded P0420 will be on or over the horizon.

I hope I am wrong

Cheers

Dave

Re: ford focus p1071

Posted by Pete Mutlow <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT1569' width='330' height='300' border=0 style='border:none;'> on July 12, 2011, 11:38 pm, in reply to "Re: ford focus p1071 "

Evening Dave,

Agree entirely with your thoughts. The problem I have found is that many inexperienced techs replace items without giving due thought to the correct diagnostic process to arrive at the proper conclusion. I am not accusing Anthony of this, but if he is guilty, then UKAT can be the perfect forum to learn from very knowledgeable techs who are willing to give their time and expertise to help.

Regards

Pete M

PS... in view of the age of the vehicle, can a "cheap" after-market cat be fitted anymore since last years new EEC regs?

Re: ford focus p1071

Posted by Dave Hill <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT2783' width='330' height='300' border=0 style='border:none;'> on July 13, 2011, 12:13 pm, in reply to "Re: ford focus p1071 "

Hi Pete

I know what you mean about the age of the vehicle, but yes the Euroflow & Bosal Cats are still a lot cheaper than the Motorcraft units (Motorcraft units are aprox £460 + VAT) & therefore I assume, the cheaper ones are still are a bit marginal on the amount of "goodies" that are contained within them.

I am still not convinced that the "type approval" regulations have put an end to the numerous premature catalyst efficiency faults that we see. What am I talking about.... I am actually convinced that even type-approved cats are still sub standard!

Ask a Pikey what he will pay for each type. Second thoughts don't bother, it will end in tears

Cheers all

Re: ford focus p1071

Posted by Darren Bamford <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5465' width='330' height='300' border=0 style='border:none;'> on July 13, 2011, 8:19 pm, in reply to "Re: ford focus p1071 "
Darren Bamford

Dave

I still see lots of "Cat efficiency" P0420 issues when aftermarket cheap shit have been fitted.

R103 converters that should be equal to the original specification are not. I my opinion they have made no difference at all.

It always makes me laugh that, motor Factors and Exhaust fitters say there is nothing wrong with it. But always swap them for another sub standard CAT. which again after about a week later the P0420 is back.

fit a genuine CAT and the car never returns with the fault P0420.... I wonder why

.

Also how come the original CAT last somewhere between 7 and 10 years.

The aftermarket ones last from one MOT to the Next.

Re: ford focus p1071

Posted by Dave Hill <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT2783' width='330' height='300' border=0 style='border:none;'> on July 14, 2011, 12:55 am, in reply to "Re: ford focus p1071 "

Hi Darren

Funny you should reply to this today, as I have just heard back from a customer who recently (January) had a catalyst replaced under warranty at the place where he purchased the car.

11 months previously he had had the cat replaced & shortly afterwards the MIL had come on. He took it back & was assured that it was nothing to worry about. He came to me for a service in February (with the second cat fitted) & I again noted the P0420 code. I checked upstream & downstream O2 sensor activity & was happy with their performance (No scope required

). Short & long term fuel trims where very close to zero (idle & cruised throttle). I had previously updated the PCM software as a matter of course & advised him of the likelihood of the combat that would follow.

He approached the sales guy who fitted the previous cat & was told that he would change it, but the labour would have to be paid for. So again a new cat was fitted.

Within a couple of months, the MIL is back on & again P0420 is logged. I repeat my previous tests & supply the customer with IDS fuel trim & HEGO sensor graphs, plus emissions print-outs, showing RPM & Oil Temp. All the evidence was there. The cat was capable of passing an MOT (Just) & all vital statistics where good.

I provided an inoice stating that a quality catalyst would be required to cure the problem. The sales guy told him that the supplier had said that... "there must be a problem with the car"

Of course the driver is not in position to argue, or take the challenge. The only way to prove the case, is to fit a genuine unit. However, that's not really an option for most folks who choose the cheap route in the first place.

I suppose its a numbers game for the manufacturers.

For me, its dealer cats only, or take it elsewhere. I would sooner be twiddling my thumbs, than be creating a problem down the road.

Re: ford focus p1071

Posted by Pete Mutlow <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT1569' width='330' height='300' border=0 style='border:none;'> on July 15, 2011, 12:24 am, in reply to "Re: ford focus p1071 "

Some interesting points made. I think it also applies to aftermarket MAF's and Lambda Sensors in addition to catalytic converters. I constantly stress to my customers the importance of buying the genuine article but it sometimes falls on deaf ears. It is very difficult to convince them that an aftermarket product may not solve their problem but I can understand the desire to save money. I can remember one such person who found a "genuine" Ford Lambda Sensor on the internet for about £25. I showed him the poor trace on pico and told him it was rubbish and he promptly disconnected the sensor and nearly shoved it up my nose to show me that it had "Ford" engraved on it. What irks me most about this is two-fold. Firstly, the customer casts aspersions on my diagnostic abilities because the aftermarket part does not work. Secondly, they swear they have got the correct part and I then go back to find its some junk from flea bay or wherever. I think I should take a harder line in future but its a difficult call sometimes when you want to keep your customers and try to take some sort of sympathetic line.

Regards

Pete M

PS. No response from Anthony yet which is dissapointing

Re: ford focus p1071

Posted by Michael Whitworth <iframe src='https://members4.boardhost.com/ukautotalk/info/user=UKAT5568' width='330' height='300' border=0 style='border:none;'> on July 16, 2011, 9:56 am, in reply to "Re: ford focus p1071 "
Mike Whitworth - Administrator

Some intersting posts and interesting comments on the is thread.

I agree whole heartedlywith Dave and Darren, Type approval aof cats is a joke! Its just a shame yta can't buy a decent aftermarlket cat.

Wrt the quality of other aftermarket components I actually agree with Frank Massey in so much as the cheap garbage the aftermarket are supplying us is creating the need for us to rely heavily on the VMs for quality parts which ultimately gives them the monopoly.

We NEED quality alternatives to the dealers to keep prices down. The junk that ECP and Unipart are peddleing is playing to the VMs.

Mike

M.O.M. Miserable Old Manc

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