[bcat]

In this case it is the blind leading the blind. You just started using forscan yourself

I'm not as blind as people who don't use it.

I have turned wrenches on every model of focus to date. Have you

With Forscan you don't need 20 years experience. Work smart, not hard. That's what they say.

 

[bcat]

heres every PID under PCM

Here's what I could match. I did not see a PID for fuel pressure. Must be one though, every car has fuel pressure.

LONGFT1
SHRTFT1
MAF
IAT
TP_V maybe APP, TP, TP_REL
CHT
RPM

IAC multiple choice, IACKAM?
EVAPVM maybe EVMV (cursor help text covering some lines)
EVAPCV
FRP (fuel rail pressure) no candidate found
FTP
FUELSYS
DSDRPM maybe ETC_DSD

IAC_MODE
EGRVR EGR_PCT
DPFEGR,V no candidate found
FUELPW1 no candidate found
FLI
EVAP20C
EVAPSTA

VSS
ENGLOAD LOAD
MFF_EGR use MFF_VSS instead
O2S11_V,V O2S11
O2S12,V O2S12
KS no candidate found
NM NUM_MISFIRE

 

[bcat]

looking at live data might help

That's what I said. No gurantees.

At 140k ... I guarantee the spark plugs have never been changed

In OPs photo, the white insulators look clean. 140k and never changed? IDK. Is there a money back with that "guarantee."

@pbfoot knows things I don't. Experience deserves respect. But nobody is right all the time. Why not relax and enjoy the ride.

 

[bcat]

anti-seize is on the threads only and installed

With anti-seize, be careful not to over tighten. Torque values are for dry threads. The same torque on lubricated threds is too much, too tight. Then you risk breaking plugs or damaging threads next time you take them out.

Without a torque wrench, they say tighten spark plugs with "three fingers until snug." That's what I do. But it does leave room for error, depending on your idea of "snug."

 

[bcat]

i did swap the 2 and 4 coils with 1 and 3

www.underhoodservice.com/understanding-misfire-codes-ignition-coils/

 

[bcat]

heres every PID under PCM

Corrections to match list:

DSDRPM becomes RPMDSD
KS becomes KNOCK_1

Other interesting PIDs:

MFF_RPM
MP_LRN

 

[rockloop85]

So this could be the problem. The abs, speed sensor issue will try to pull timing at weird moments causing exactly what you describe. I would fix that first if the plugs look good. More than likely a faulty wheel sensor or vehicle speed sensor and or damaged wiring connectors at the vss or wheel sensor.

I read that exact info on this forum when the abs light first came on. I used ForScan to show all 4 wheel speed sensors and the vss and compared it to gps speedometer.. It was the same. I didn't go any further, didn't think it could be related but I'll check the abs module connection. I've got contact cleaner and dielectric grease.

 

[rockloop85]

Ok so you've both given me some clear directions to go. One leads back into the ecm and the other points towards the abs module. I'm back to work until the weekend and will get back to the car on Saturday. I'll get new logs with those pids and I'll also check abs module connection.

 

[pbfoot]

Ok so you've both given me some clear directions to go. One leads back into the ecm and the other points towards the abs module. I'm back to work until the weekend and will get back to the car on Saturday. I'll get new logs with those pids and I'll also check abs module connection.

Another abs related possibilty is someone botched a brake job by losing too much fluid and the sensor piston is in the wrong position. I believe you should be able to see that in Forscan.

 

[bcat]

you've both given me some clear directions to go. One leads back into the ecm and the other points towards the abs module.

ABS may set an ECU fault, making it sound worse than it is. Fix ABS first, to see if the ECU fault clears too.

 

[w8ball001]

You can have misfires without throwing a code. The "NM" PID in the bottom right of my dashboard is number of misfires. That's the first thing I would look at.

It would be useful to check the mode 6 data. This will display a individual list of misfires by cylinder.

 

[rockloop85]

It would be useful to check the mode 6 data. This will display a individual list of misfires by cylinder.

yes mode 6 data showed 1 single misfire in cylinder 2 and 1 single misfire in cylinder 4. i cleaned the plugs which seemed new and swapped those coils with 1 and 3. plugs went back into the same spots. I dont get to drive the car too often since its my wife's but when i do i monitor forscan.

 

[rockloop85]

ABS may set an ECU fault, making it sound worse than it is. Fix ABS first, to see if the ECU fault clears too.

Ok ive driven it 5 times and have not felt the chugging again .Of course the abs and trac lights are still on but those are going to have to wait a bit longer...our tax return had to be amended which netted us an extra 3500 but we're still waiting on it after all this time. I can do an abs module test with forscan but it says theres a procedure to do first before the test. hopefully its easy to find here on FF.
I wish the closest u-pull-it wasnt 60 miles round trip or i'd already have a replacement part.

 

[bcat]

I can do an abs module test with forscan but it says theres a procedure to do first ... I wish the closest u-pull-it wasnt 60 miles round trip or i'd already have a replacement part

How do you know what part before doing the test?

 

[rockloop85]

How do you know what part before doing the test?

the obd self test says the control module for abs. theres a more thorough test and i'm looking for the procedure. If there was a local kophers i'd just get the module and have it ready.

 

[bcat]

the obd self test says the control module for abs

Are you saying the ABS computer module is bad? Not clear to me what supports that.

 

[pbfoot]

the obd self test says the control module for abs. theres a more thorough test and i'm looking for the procedure. If there was a local kophers i'd just get the module and have it ready.

The part that gets out of alignment is in the abs pump itself. Be careful, some codes are set due to a mechanical malfunction in another part. As far as the misfire goes, if it returns in the same cylinders even though you swapped the coils, you should examine the crankshaft damper for excessive runout as that is where the reluctor wheel for the crankshaft position sensor is located.

 

[rockloop85]

The part that gets out of alignment is in the abs pump itself. Be careful, some codes are set due to a mechanical malfunction in another part. As far as the misfire goes, if it returns in the same cylinders even though you swapped the coils, you should examine the crankshaft damper for excessive runout as that is where the reluctor wheel for the crankshaft position sensor is located.

What's the acceptable amount of slop? Would I check with a breaker bar? I can pull a plug and see when the piston moves in relation to the dampener.

And the car just threw a p0128 DTC. It's finally cooling down in Florida and the code happened on a cool night after a hot day.
I remember my g60 Corrado running like ass after a temp sensor went bad.

 

[rockloop85]

Are you saying the ABS computer module is bad? Not clear to me what supports that.

I'm just quoting what it's telling me. Says possible corrosion on connector, malfunctioning module, or aftermarket parts

 

[rockloop85]

What's the acceptable amount of slop? Would I check with a breaker bar? I can pull a plug and see when the piston moves in relation to the dampener.

And the car just threw a p0128 DTC. It's finally cooling down in Florida and the code happened on a cool night after a hot day.
I remember my g60 Corrado running like ass after a temp sensor went bad.

Just to clarify, are you talking about crankshaft walk or too loose in the dampener?