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Old 8th March 2015, 17:45   #16
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Default Re: Fiesta 1.6s Sluggishness. Help Needed

Is the 'check engine light' glowing? If yes, the ECU cuts the revvs to prevent damage to the engine. This normally happens during winter months, but I'm not sure about your friend's case. In my case, the light glows once or twice in winter months, but on switching off and starting again it does not glow, and I feel no lack of grunt.

The light normally glows when there is muck in the throttle body or on the MAP sensor. Please check Jerry_can's thread for details on how to overcome that issue.

http://www.team-bhp.com/forum/techni...ght-issue.html

Last edited by vnabhi : 8th March 2015 at 17:47. Reason: Spelling mistake
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Old 8th March 2015, 18:27   #17
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Default Re: Fiesta 1.6s Sluggishness. Help Needed

You say they did a ids scan? If it was a proper Ford authorised shop, they would have had a Ford Fiesta specific OBD analyser. Even though the CEL is not on that doesn't mean much. There could still be codes. Also, those analysers have a lot of dynamic testing capabilities and this is a typical problem you find by looking at laptop with the correct diagnostic software.

So I would make absolutely sure that they had the right analytical equipment and competence to deal with this. If not, go and find somebody that does. Trust me, it will save time and money in the end.

Alternatively you can go with the trusted Team BHP method also known as the hit or miss method and start changing out everything. I doubt very much that engine flush, oil change and the likes will make a difference.

Lack of low rev pick up could be a host of different things. Some, not all, will throw codes, but not necessarily a CEL.

There are a few things you could checked/do that are relatively easy and cheap and could be the cause of lack of low rev pick up:

- Check and clean the air inlet filter.
- Check the whole air inlet circuit up to especially after the mass air flow meter for little tears, anything loose. If there is any air drawn in here it won't be measured by the mass air flow meter and you essentially lean out the engine.
- Check and inspect the mass air flow meter inside for obvious dirt built up.
- Check all parts for visual damage, tears, broken bits etc.
- Check fuel pressure, change filter to make sure.

Any competent mechanic should be able to carry out the above in 20-30 minutes.
A competent mechanic with a proper Ford Specific OBD analyser is likely to find the problem in 20-30 seconds.

In my experience with Fiesta's I would say the air leak after the mass air flow meter, fuel or an electronic problem (ignition advance, wonky altitude compensation etc) are the most likely candidates. But then again, it could be something completely different.

Good luck

Jeroen
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Old 8th March 2015, 23:19   #18
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Default Re: Fiesta 1.6s Sluggishness. Help Needed

Quote:
Originally Posted by Jeroen View Post
You say they did a ids scan? If it was a proper Ford authorised shop, they would have had a Ford Fiesta specific OBD analyser. Even though the CEL is not on that doesn't mean much. There could still be codes. Also, those analysers have a lot of dynamic testing capabilities and this is a typical problem you find by looking at laptop with the correct diagnostic software.

So I would make absolutely sure that they had the right analytical equipment and competence to deal with this. If not, go and find somebody that does. Trust me, it will save time and money in the end.

Alternatively you can go with the trusted Team BHP method also known as the hit or miss method and start changing out everything. I doubt very much that engine flush, oil change and the likes will make a difference.

Lack of low rev pick up could be a host of different things. Some, not all, will throw codes, but not necessarily a CEL.

There are a few things you could checked/do that are relatively easy and cheap and could be the cause of lack of low rev pick up:

- Check and clean the air inlet filter.
- Check the whole air inlet circuit up to especially after the mass air flow meter for little tears, anything loose. If there is any air drawn in here it won't be measured by the mass air flow meter and you essentially lean out the engine.
- Check and inspect the mass air flow meter inside for obvious dirt built up.
- Check all parts for visual damage, tears, broken bits etc.
- Check fuel pressure, change filter to make sure.

Any competent mechanic should be able to carry out the above in 20-30 minutes.
A competent mechanic with a proper Ford Specific OBD analyser is likely to find the problem in 20-30 seconds.

In my experience with Fiesta's I would say the air leak after the mass air flow meter, fuel or an electronic problem (ignition advance, wonky altitude compensation etc) are the most likely candidates. But then again, it could be something completely different.

Good luck

Jeroen
Hello Mr. Jeroen,

Is there a Mass Air Flow sensor in the Fiesta 1.6? If yes, what is its utility? Even I thought that changing engine oil and engine flushing would be futile because in a petrol engine lack of acceleration in low gears is definitely an air-circulation -related issue.

Is there a Mass Air Flow meter in every petrol car? And does the OBD scanner tool provide all these data(air flow, fuel pressure, temperature etc.) to a mechanic? Can I check these data at my home on my own car?

Regards,
Ashok.
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Old 9th March 2015, 08:07   #19
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Default Re: Fiesta 1.6s Sluggishness. Help Needed

Quote:
Originally Posted by Ashok Naik View Post
Is there a Mass Air Flow meter in every petrol car? And does the OBD scanner tool provide all these data(air flow, fuel pressure, temperature etc.) to a mechanic? Can I check these data at my home on my own car?
.
If it is a petrol car with no carburator, essentially yes, it will have some mass air flow meter.

Rroughly speaking there are two OBD variants. There are OBD readers that can read all the so called generic codes. And there are readers that can, in addition, read manufacturer specific codes.

Anything in your car, engine, transmission, GPS with any type of sensor or read out capabillity is hooked up to the Various onboard computers. You will often see the term ECU used on this forum. Most cars have multiple on board computers and even the engine management system migh reside in multiple physically seperate boxes/computers.

All these OBD scanners are available for the DIY mechanic too. You just need to purchase the correct hardware, cables and software. There is an OBD thread on this forum with a lot of usefull information. The more advanced OBD analyzer do more than read the error codes. They also provide a wealth on life data and all sort of parameters on the engine etc.

A small word of caution. Even though the term generic OBD codes suggest they are the same for all cars, in practice this is not true. So for instance the code P1190 means something different on a Jeep, compared to a Ford, compared to say a Swift. I have found the same for manufacurer specific codes. So next to the code reader/analyzer you need to have access to the correct table of OBD or DTC codes as they are known. Lots of that on the Internet, although for some Indian cars it might be a bit of a challenge.
The sort of analysers used by professional workshops will always by car/model specific. It will through the code, but often provide additional trouble shoot guidance and other measurement to take.

Jeroen
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Old 9th March 2015, 13:18   #20
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Default Re: Fiesta 1.6s Sluggishness. Help Needed

Quote:
Originally Posted by Jeroen View Post
If it is a petrol car with no carburator, essentially yes, it will have some mass air flow meter.

Rroughly speaking there are two OBD variants. There are OBD readers that can read all the so called generic codes. And there are readers that can, in addition, read manufacturer specific codes.

Anything in your car, engine, transmission, GPS with any type of sensor or read out capabillity is hooked up to the Various onboard computers. You will often see the term ECU used on this forum. Most cars have multiple on board computers and even the engine management system migh reside in multiple physically seperate boxes/computers.

All these OBD scanners are available for the DIY mechanic too. You just need to purchase the correct hardware, cables and software. There is an OBD thread on this forum with a lot of usefull information. The more advanced OBD analyzer do more than read the error codes. They also provide a wealth on life data and all sort of parameters on the engine etc.

A small word of caution. Even though the term generic OBD codes suggest they are the same for all cars, in practice this is not true. So for instance the code P1190 means something different on a Jeep, compared to a Ford, compared to say a Swift. I have found the same for manufacurer specific codes. So next to the code reader/analyzer you need to have access to the correct table of OBD or DTC codes as they are known. Lots of that on the Internet, although for some Indian cars it might be a bit of a challenge.
The sort of analysers used by professional workshops will always by car/model specific. It will through the code, but often provide additional trouble shoot guidance and other measurement to take.

Jeroen
Thank you Mr. Jeroen,

That was extremely helpful. I have gone through this article on the forum-OBD Diagnostics for Indian Cars. The OBD scanner costs a lot-close to 3.5 lakhs. I have seen the Tech II scanner and it looks like a Tablet. But it is very highly priced. I wanted to buy one such equipment.

Why are these OBD scanners so highly priced? Infact you can buy a super computer for that price.

Regards,
Ashok.
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Old 9th March 2015, 13:27   #21
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Default Re: Fiesta 1.6s Sluggishness. Help Needed

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Originally Posted by Ashok Naik View Post
Why are these OBD scanners so highly .
Not sure. In Europe/USA you can buy a simple handheld OBD reader for anything from Euro 20-30 upwards. Looks like a multimeter.

I have also the software from Autoengenuity. Basic software package cost $250. For every car/model you add you pay another $200-250. So it does add up. But then you get the same diagnostic capabilities as any mainstream Dealer workshop would have.

In the USA the Jaguar dealer would charge around $175 for an OBD check, so it's an easy Business Case. You only need to use it a few times and you are in the money so to speak

See http://www.team-bhp.com/forum/attach...o-img_1875.jpg



There are also very simple dongle type devices that you just plug into the OBD port and they communicate with your smart phone. I have no experience with those, but quite a few members here seem to be using it.

So it really is a bit of what you are looking for, what functions, requirements, budget and some personal preferences.

Jeroen

Last edited by Jeroen : 9th March 2015 at 13:28.
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Old 9th March 2015, 13:40   #22
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Default Re: Fiesta 1.6s Sluggishness. Help Needed

Quote:
Originally Posted by Ashok Naik View Post
The OBD scanner costs a lot-close to 3.5 lakhs. I have seen the Tech II scanner and it looks like a Tablet. But it is very highly priced. I wanted to buy one such equipment.

Why are these OBD scanners so highly priced? Infact you can buy a super computer for that price.
The OBD scanners that are expensive are because of the time/effort/money spent to obtain the data for many cars spread across various manufacturers.

If your idea is to have a reader to merely read the vehicle parameters I would recommend a blue-tooth OBD dongle that you can buy off ebay or amazon, it will be hardly 10 dollars, pair it with an app like torque on your smart phone and you are good to go.
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Old 1st April 2015, 22:15   #23
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Default Re: Sluggish Acceleration in Fiesta 1.6S

Thank you for the nuggets, everyone. He's been following this thread for a while. Will update the status once he comes home grinning
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