P0171 & 74, But Normal ST & LTFT's?
#61
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#63
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General info
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General info pt 2
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Codes
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Codes pt 2
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freeze frame data
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Freeze frame data
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Data at idle
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Data at 2500 RPM
Well guys, on the way home today, my MIL came on again. When I got home, I took the above pictures of data from my laptop using my scan tool (OBDCOM) So here it is, any help is appreciated!
Last edited by Jimmy 68; 01-16-2017 at 09:42 PM.
#64
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If you didn't clear things before the last 2 pics then you don't have a typical air leak.
So you're looking at some other cause of lean codes - both sides look about as bad as each other.
The clue may be the monitors (called self-tests in the pics for some bizarre reason) that have failed to set. EVAP looks a real worry.
Possibly MAF, though.
So you're looking at some other cause of lean codes - both sides look about as bad as each other.
The clue may be the monitors (called self-tests in the pics for some bizarre reason) that have failed to set. EVAP looks a real worry.
Possibly MAF, though.
#65
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If you didn't clear things before the last 2 pics then you don't have a typical air leak.
So you're looking at some other cause of lean codes - both sides look about as bad as each other.
The clue may be the monitors (called self-tests in the pics for some bizarre reason) that have failed to set. EVAP looks a real worry.
Possibly MAF, though.
So you're looking at some other cause of lean codes - both sides look about as bad as each other.
The clue may be the monitors (called self-tests in the pics for some bizarre reason) that have failed to set. EVAP looks a real worry.
Possibly MAF, though.
Going to replace MAF and see what happens....
#67
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I'd rather replace a hose or fitting first vs a MAF sensor.
I did what you suggested. I purchased a cheap MAF from an auto supply chain store and it will be my test piece. If it fixes it, I'll then go out and get an OEM or suitable permanent replacement.
Cleared codes and installed MAF today, now we'll wait and see...
Strange I noticed on the Self Tests Failed or Not Supported column it added Oxygen Sensor to the other two on the list from the above pictures, Component Monitoring and Evaporative System.
#68
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#70
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I'll have to look into which OBD monitors were not reset yet. I think its under Self Tests Failed or Not Completed: Component Monitoring, Evaporative System, Oxygen Sensor.
Definitely in closed loop when I check hot, but what do you mean by "IS"?
Last edited by Jimmy 68; 01-20-2017 at 08:27 AM.
#71
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Emphasis.
Monitors that do not set fairly quickly can be that the driving is not varied enough, that you're at an extreme altitude (apparently not you) or that a fault is blocking one or more. The latter can be tough to figure as many codes can't flag if the monitors are not set (it's why you're supposed never to clear codes). Fortunately this codes Catch-22 is fairly rare...
Monitors that do not set fairly quickly can be that the driving is not varied enough, that you're at an extreme altitude (apparently not you) or that a fault is blocking one or more. The latter can be tough to figure as many codes can't flag if the monitors are not set (it's why you're supposed never to clear codes). Fortunately this codes Catch-22 is fairly rare...
Last edited by JagV8; 01-20-2017 at 08:42 AM.
#72
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Emphasis.
Monitors that do not set fairly quickly can be that the driving is not varied enough, that you're at an extreme altitude (apparently not you) or that a fault is blocking one or more. The latter can be tough to figure as many codes can't flag if the monitors are not set (it's why you're supposed never to clear codes). Fortunately this codes Catch-22 is fairly rare...
Monitors that do not set fairly quickly can be that the driving is not varied enough, that you're at an extreme altitude (apparently not you) or that a fault is blocking one or more. The latter can be tough to figure as many codes can't flag if the monitors are not set (it's why you're supposed never to clear codes). Fortunately this codes Catch-22 is fairly rare...
If so, I never knew that.
I have to take the battery out today to dry out the small lake in the boot, its been raining here lately with more to follow.
How will that affect my readiness? Starting all over again I suppose?
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#75
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If no P1111 then it's in doubt what is/was wrong.
#76
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In previous weeks, I would clear the MIL, try a fix,and the MIL would come back on with same lean codes well under 275 miles, more like 100 or under.
Since I have 275 miles on the car since the MAF changeout, I would say its unofficially fixed, P1111 or P1000
Since I have 275 miles on the car since the MAF changeout, I would say its unofficially fixed, P1111 or P1000
#77
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Evap hardest to set especially the fact ambient temp needs to be above 40 deg F, (it's winter up here) cold start (engine off for at least 8 hrs) & fuel level between 1/4 & 3/4 tank.
Must drive at a steady speed (highway for anywhere between 7 - 20 minutes)
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Jumpin' Jag Flash (01-24-2017)
#78
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Plugs/coils? Lean codes hopping from bank-to-bank don't really support a vacuum leak; I'd think it would be one, or the other....or BOTH but not alternating. Misfires have been known to trip lean codes but not misfire codes on occasion.
Also, at 106k, keep an eye on your radiator - it's past time for your right side tank-seal to start leaking..bout 2/3- 3/4 down, back side....leak will blow onto the DCCV and make you think it leaks.
Also, at 106k, keep an eye on your radiator - it's past time for your right side tank-seal to start leaking..bout 2/3- 3/4 down, back side....leak will blow onto the DCCV and make you think it leaks.
![Frown](https://www.jaguarforums.com/forum/images/smilies/frown.gif)
Oh, and BTW, 967 miles since the MAF replace/MIL reset and yes.... still at P1000! Component monitoring, evaporative system not ready. Oxygen sensors finally were ready.
#79
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JTIS lists all the various drive-cycles.....you could methodically work your way through them all. I seem to recall the lean codes require 10 min at idle once engine has reached operating temperature to be assured they're gone, but I may have that wrong..
#80