Hi all,

I have an issue with my 2018 Fiest 1.1. Its currently not starting.

The weeks leading up the the non start issue it struggled to start and then eventually spluttered to a start with a few pops/backfires thrown in for good measure like a 1980s Cortina.

The day before, it struggled and then cut out and now its not starting at all.

Its low mileage (circa 24k) and no errors on forscan which is strange.

Can anybody help guide the steps i should take to diagnose it? Ive seen similar posts on here but the OP tends to not come back once fixed which is shame

Using a multimeter, what is the exact battery voltage when measured across the terminals ?

Try easy start..if it starts then Check fuel filter for contamination 

Pops and bangs are usually a sign of an Ignition related problem.

My first thought was timing out because the wetbelt has slipped, or bits of it have clogged the VCT actuator.  But with no codes on Forscan that seems very unlikely.  So a decent battery or a jump start would be next move as well.

17 hours ago, unofix said:

Using a multimeter, what is the exact battery voltage when measured across the terminals ?

Its 12.5v. Battery is also healthy. I will try a booster today for good measure and see how if that makes a difference.

 

Good call on easy start. Been a while since I used. I will also try that and report back

With FORScan bring up the PID's for RPM and any Fuel Pressure ones and make sure you are getting readings when cranking.

Ignition problems are more difficult to diagnose electronically, if the above are ok then checking for a Spark the old fashioned way might be a good Idea.

Sounding like timing... or the consequential damage to valves ..caused by a slipped belt. how you go round checking it tho'  without physically exposing the timing belt, I can't help there, hopefully someone else here will.... afterthought: maybe doing a compression check of the cylinders might be a good start... 🤔

read somewhere you could examine the belt by taking the cam cover off..

Posting on my original account now that I have access to it again!

 

Some progress is better than no progress

I have got it started with easy start. I had to hold the revs to 3.5k for a few mins with the odd squid of easy start once it was started. 
 

The revs get dropping and the car stalling. Once it was warm it was idling fine so perhaps a cold start issue?!

I then drove it. All seemed fine until I got to the end of my road which is when it started spluttering at low revs only. At high revs - over 3k it drove fine

Still no codes, so I'm thinking a fuelling issue somewhere. Possibly the pump or a clogged fuel filter?
 

4 minutes ago, norman1979 said:

Posting on my original account now that I have access to it again!

What's a 2021 Ford Model: Norman ? 🤔

8 minutes ago, unofix said:

What's a 2021 Ford Model: Norman ? 🤔

FTFY 😉

Does anybody know if the Fuel Tank Pressure (FTP,kpa) should be constant?

Mine stays at -4.6 regardless of the revs

 

i found that if you feather the throttle up high 5k rpm it feels smooth but if you are heavy on the throttle you can feel it misfiring/struggling

 

Still no error codes. I've checked the fuel line at the end side and it seems to be flowing ok

Finally have a fault code P0171 - System too lean bank 1 

Not sure if this is related to using easi-start to start it as that's the only thing that gets her started

Any ideas or guidance?

Has any work been done under the bonnet in recent weeks, has it been serviced ? Just wondering if you have an air leak somewhere after the MAF sensor ?

4 minutes ago, unofix said:

Has any work been done under the bonnet in recent weeks, has it been serviced ? Just wondering if you have an air leak somewhere after the MAF sensor ?

No it hasn't had anything done since May last year when it had a basic oil service. 
 

I covered the intake pipe expecting the car to shut off but it stayed on. Not sure if that's normal or not but I did notice that. Could that point to an air leak as it's still getting air?

18 minutes ago, norman1979 said:

Could that point to an air leak as it's still getting air?

This is not my area of expertise, but it would seem to me that if you fully block the air intake and the engine continues to run then it must be drawing in air from some where. Any air that gets in after the MAF sensor will be unmetered and will cause a lean petrol/air mix.

 

To summarise. Engine starts on easystart.  It is lean. Engine smooth on gentle throttle application and rough when given heavy throttle. It is lean. You have a fault code advising it is lean. It is lean.  The symptoms largely rule out the fuel filter

So it isn't ignition, cam timing or the use of easystart causing this. The engine runs smoothly at 5000 rpm ,Forscan isn't giving low fuel pressure codes. Rules out injection system.  I would be looking at pipes, possibly turbo outlet a bit loose but it is likely to be something that could be heard with a bit of  old fashioned hosepipe.

21 minutes ago, unofix said:

This is not my area of expertise, but it would seem to me that if you fully block the air intake and the engine continues to run then it must be drawing in air from some where. Any air that gets in after the MAF sensor will be unmetered and will cause a lean petrol/air mix.

So that's possibly what's caused the lean error on forscan. I disconnected the inlet from the airbox and plugged it there so see it would continue to run and it did 

 

 

18 minutes ago, anon said:

 

To summarise. Engine starts on easystart.  It is lean. Engine smooth on gentle throttle application and rough when given heavy throttle. It is lean. You have a fault code advising it is lean. It is lean.  The symptoms largely rule out the fuel filter

So it isn't ignition, cam timing or the use of easystart causing this. The engine runs smoothly at 5000 rpm ,Forscan isn't giving low fuel pressure codes. Rules out injection system.  I would be looking at pipes, possibly turbo outlet a bit loose but it is likely to be something that could be heard with a bit of  old fashioned hosepipe.

Yes that's the symptoms. It doesn't have a turbo it's the 1.1 ti-vct engine. Perhaps somewhere on the intake pipe? 

Could it be the a dodgy throttle body? I expect that would show a fault code on forscan though. 

4 minutes ago, norman1979 said:

It doesn't have a turbo it's the 1.1 ti-vct engine. Perhaps somewhere on the intake pipe? 

Yes, I noted from your profile that it was the 1.1 non-turbo. Is the air filter box lid properly fitted and fully fastened ?

2 minutes ago, unofix said:

Yes, I noted from your profile that it was the 1.1 non-turbo. Is the air filter box lid properly fitted and fully fastened ?

Yes fully fastened. All clips also intact and clipped in securely. 

It runs the same with and without the intake pipe connected to the air box - so filled that out from being an issue 

Can you post a picture of the intake run on these?  I'm familiar with the turbo version but not the NA engine.  Also, does it use both MAF & MAP sensors or does it just make do with one of those?

3 hours ago, TomsFocus said:

Can you post a picture of the intake run on these?  I'm familiar with the turbo version but not the NA engine.  Also, does it use both MAF & MAP sensors or does it just make do with one of those?

These are generic google searches images as I'm at work. Hopefully can give you an idea?

 

 

Looks like there's no MAF.  But need to see the manifold and the inlet pipe connection behind the engine really.  I'll see if I can find one on ebay.