Ford Focus 2001 1,6 Zetec-SE

If you are not a PicoScope user and want advice with a diagnostic problem then post here. Forum members may be able to help.

Ford Focus 2001 1,6 Zetec-SE

Postby terbo » Sun Jun 04, 2017 1:59 pm

Hi,
I got a Focus in, that starts really bad, idles poorly, almost doesn´t rev,
only if you hit it WOT then it slowly increases rpm.
Sounds like it would have a plugged exhaust.But same with Cat taken off.
And makes puffing noises from engine bay when it dies off at idle.

Checked Codes - nothing
Checked Fuel pump current - looked not so bad.
Checked Fuel pressure - around 3,5bar key on and idle (if you call it so).
Then checked Cam vs Crank - Good Picture at around 3800 rpm attached.
Then took WPS in Cyl.1 and ignition Pickup on Cyl.1 Coil wire (going to Sparktester)

I would say the Timing is off, would anyone agree with this ?

Anyone have a good cam/crk Picture ?

Thanks Chris
Attachments
ksp-focus2.psdata
Fuel Current
(640.83 KiB) Downloaded 34 times
Focus-cam+crk at 3800.psdata
cam+crk at 3800
(191.97 KiB) Downloaded 45 times
Focus-crank-WPS500+Cyl1-ignition.psdata
WPS+Ign
(1.76 MiB) Downloaded 50 times
terbo
TwoWaves
TwoWaves
 
Posts: 57
Joined: Sun Jul 06, 2014 4:40 pm

Re: Ford Focus 2001 1,6 Zetec-SE

Postby PicoKev » Sun Jun 04, 2017 2:45 pm

Hi Chris,

What is the engine code on this car?

I have a 1.6 with a FYDB engine lurking that I could grab a capture for you.

Kev.
PicoKev
TwoWaves
TwoWaves
 
Posts: 91
Joined: Thu Apr 05, 2012 11:16 am

Re: Ford Focus 2001 1,6 Zetec-SE

Postby Prince » Sun Jun 04, 2017 2:45 pm

Hi.

I always make sure my cat is no where near my car. Apparently you don't want to kill your cat. LOL. I think looking at other pics its retartet .

Let me think.
User avatar
Prince
OneWave
OneWave
 
Posts: 14
Joined: Sun Nov 20, 2016 2:12 pm

Re: Ford Focus 2001 1,6 Zetec-SE

Postby Technician » Sun Jun 04, 2017 3:31 pm

Observing your scope traces of the cam Vs crank, it appears the valve timing is indeed incorrect.
Technician
TwoWaves
TwoWaves
 
Posts: 259
Joined: Thu Apr 24, 2014 10:32 pm

Re: Ford Focus 2001 1,6 Zetec-SE

Postby terbo » Sun Jun 04, 2017 4:10 pm

Hi,
I think FYDB is not so incorrect, think that could be.
But i don´t know 100%.
Where do i find the engine code on this Car ?
Partslink doen´t show it with the VIN.
Pord Service Page either...
Attachments
focus1.png
Ford Service Data
focus1.png (11.37 KiB) Viewed 611 times
terbo
TwoWaves
TwoWaves
 
Posts: 57
Joined: Sun Jul 06, 2014 4:40 pm

Re: Ford Focus 2001 1,6 Zetec-SE

Postby EAAD » Sun Jun 04, 2017 7:17 pm

terbo wrote:Hi,
I think FYDB is not so incorrect, think that could be.
But i don´t know 100%.
Where do i find the engine code on this Car ?
Partslink doen´t show it with the VIN.
Pord Service Page either...


When scanning the cars data, The engine code is identified on an AutoSearch together with the VIN when using the Launch x431 & similar scanners. Also, a quick goggle search will give you information to identify its engine code. (is the owners handbook with he car) Youll need the engine code to be certain of what youre asking on here to be acurate. There are 2, FYDA & FYDB.

I personally cannot see if your Cam Vs Crank is out as I do not have a known good trace on either engine code to refer to (I cant get to the Reference waveform Library at the moment as my scope is at work and I need to have it attached to gain access) I can only assume you have checked the Library and there isnt one?

I dont know how 'Technician' on here has drawn his conclusion from the Cam Vs Crank trace?
Q Technician - Do you have a known good please? I only ask as Im eager to learn by scrutinising all i can get hold of. It would be good to measure and verify Cam Vs Crank against the WPS Compression & Ignition info.

However looking at your WPS compression trace against the same cylinder ignition, it appears that the timing is wrong. I measure it at nearly 36degrees AfterTDC, (35.85degrees AferTDC to be precise) furthermore the compression towers are leaning uneven indicative of a leaking cylinder. That said, given the age of the car, im not surprised. The EVO event looks reasonable using generic specs, dont misinterpret me here, it is out a little on generic specs (Edit: EVO event circa 10degrees late) but i suspect not too far off when someone gives us valve specs for this vehicle perhaps.

I think youve enough information to pull the covers off and physically check timing whether the Cam/Crank trace is out or not. After all its really easy to do on this car.

kind regards
EAAD
TwoWaves
TwoWaves
 
Posts: 55
Joined: Mon Apr 04, 2016 2:15 pm

Re: Ford Focus 2001 1,6 Zetec-SE

Postby Dcunning35 » Mon Jun 05, 2017 11:45 am

Before you get oily , check the inlet manifold vacuum to confirm your timing suspicion.
If you haven't got a gauge use your map reading .
Dcunning35
TwoWaves
TwoWaves
 
Posts: 191
Joined: Thu Jan 28, 2016 2:33 pm

Re: Ford Focus 2001 1,6 Zetec-SE

Postby terbo » Mon Jun 05, 2017 1:16 pm

At "idle" , if you get it to rev up a little
then you get around 20 on the Decel for
about 1 second, if you let it idle, it drops
and drops till around 3, then Engine cuts out.
Attachments
vacuum.png
Vacuum reading
terbo
TwoWaves
TwoWaves
 
Posts: 57
Joined: Sun Jul 06, 2014 4:40 pm

Re: Ford Focus 2001 1,6 Zetec-SE

Postby Dcunning35 » Mon Jun 05, 2017 9:03 pm

Its way to low , I would anticipate around 25hg and smooth at idle .
May be worth running through checking the valve clearances as well as checking the valve timing ,just ensure you use the correct timing pin for the crankshaft.
Dcunning35
TwoWaves
TwoWaves
 
Posts: 191
Joined: Thu Jan 28, 2016 2:33 pm

Re: Ford Focus 2001 1,6 Zetec-SE

Postby terbo » Sun Jun 11, 2017 1:42 pm

The mechanical timing is correct.
Put in Timing tool, turned Crank till it stopped, and
the Tool for the CAMs slides in with no pressure.
1 FInger > CLICK - inserted
Attachments
2017-06-11 11.58.06.jpg
CRK Tool
2017-06-11 11.58.31.jpg
CAM 2
2017-06-11 11.58.48.jpg
CAM 1
terbo
TwoWaves
TwoWaves
 
Posts: 57
Joined: Sun Jul 06, 2014 4:40 pm

Next

Return to Help me fix my car

Who is online

Users browsing this forum: No registered users and 0 guests