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 Post subject: Check engine light for Glow Plugs and MAF
PostPosted: Tue Nov 21, 2017 7:48 pm 
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Location: San Diego
Hi All

I have a few codes causing a check engine light I was looking for a little help with:

1. P1261, P1265, P1267 - These look like 3 glowplugs. I noticed the images for the replacement walkthrough on the forum dont display anymore. I'm a visual guy, does anyone have any other source for a replacement procedure, images or video? Also realistically how long would this procedure take for a diy-er and what would a garage charge for the labor? I did my timing belt myself, but man my CRD is just so greasy and sooty I loathe working on it, but I'm cheap so I usually do.

2. P0102 - MAF sensor. I expected this one as my MAF plug was disconnected, but I re-connected because my smog is due in a few weeks, and after several long drives the code is still not going away. What are the possibilities that I should look into to get rid of this code?

Thanks!

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 Post subject: Check engine light for Glow Plugs and MAF
PostPosted: Tue Nov 21, 2017 8:00 pm 
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dskater411 wrote:
Hi All

I have a few codes causing a check engine light I was looking for a little help with:

1. P1261, P1265, P1267 - These look like 3 glowplugs. I noticed the images for the replacement walkthrough on the forum dont display anymore. I'm a visual guy, does anyone have any other source for a replacement procedure, images or video? Also realistically how long would this procedure take for a diy-er and what would a garage charge for the labor? I did my timing belt myself, but man my CRD is just so greasy and sooty I loathe working on it, but I'm cheap so I usually do.

2. P0102 - MAF sensor. I expected this one as my MAF plug was disconnected, but I re-connected because my smog is due in a few weeks, and after several long drives the code is still not going away. What are the possibilities that I should look into to get rid of this code?

Thanks!


This same thing happened to my maf. I had it unplugged for a while but when I plugged it back in it was still throwing a code. Bought a new maf and it went away.

The glow plugs can be tough to get to and can be in there pretty tight. It’s worth getting in there with pb blaster to hopefully loosen them.

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 Post subject: Re: Check engine light for Glow Plugs and MAF
PostPosted: Tue Nov 21, 2017 8:26 pm 
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Glow plugs - go to http://colorado4wheel.com/manuals/Jeep/KJ/ and download my tech tips PDF; scroll down to glow plug service in the bookmarks.

MAF - length of drives won't clear the code assuming the MAF is good rather it's the number of drive cycles (from cold to hot) which is like 5-10. But first pull the plug; check and clean the contacts; replug making sure the plug lock is fully engaged.

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 Post subject: Re: Check engine light for Glow Plugs and MAF
PostPosted: Tue Nov 21, 2017 8:59 pm 
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Location: San Diego
papaindigo wrote:
Glow plugs - go to http://colorado4wheel.com/manuals/Jeep/KJ/ and download my tech tips PDF; scroll down to glow plug service in the bookmarks.

MAF - length of drives won't clear the code assuming the MAF is good rather it's the number of drive cycles (from cold to hot) which is like 5-10. But first pull the plug; check and clean the contacts; replug making sure the plug lock is fully engaged.



I didn't realize it was that many drive cycles, maybe Ill give it more time before I assume something is bad. Ill clean the contacts too. Ive been putting off replacing a stuck thermostat for a while so my engine really doesn't get to full operating temps unless I do spirited (for a CRD) stop and go driving. I wasn't sure what actually triggered a completed "drive cycle", I think I read somewhere its the radiator fan coming on? I cant get mine to come on at all this time of year unless I turn the ac on and turn my heat to max, not sure if that counts though.

Thanks for the glow plug links

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 Post subject: P0299 and P0102
PostPosted: Wed Jan 03, 2018 10:41 pm 
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Hi All

I have pulled 3/4 glow plugs (just removed the EGR/intake elbow and letting the last one behind soak in pb blaster), and now trying to track down the likely cause(s) of the following check engine lights-

P0299-turbo underboost
P0102-maf circuit low

-I pulled all the intake hoses, the turbo to intercooler and intercooler to manifold hoses look good to me, cleaning them up now.
-The airbox to turbo hose is falling apart around the turbo c-clamp area but not enough to make me think it was leaking. I'm ordering a new one anyway.
-Turbo inlet blades look good and spin freely, no shaft play
-The FCV isn't stuck, it moves freely. Does this mean the entire part is ok or is there any other test I can perform to rule this piece out as being the problem?
-Anything else I can check that could be the culprit? Vacuum lines? If so specifically where and what should I check? I have no idle issues.

I do notice a slight lack of power when accelerating/climbing hills, the turbo spools up hard/loud but the car doesn't go very fast.

Appreciate the help!

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 Post subject: Re: Check engine light for Glow Plugs and MAF
PostPosted: Wed Jan 03, 2018 10:59 pm 
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Have you tried cleaning the MAP sensor in the intake manifold?

Edit: For code P0299. As I understand, MAP is a baseline pressure reference to calculate boost pressure. Also, how clean is your air filter?


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 Post subject: Re: Check engine light for Glow Plugs and MAF
PostPosted: Wed Jan 03, 2018 11:02 pm 
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hopp wrote:
Have you tried cleaning the MAP sensor in the intake manifold?

Edit: For code P0299


i have cleaned it a couple of times over the years, the last time i pulled it, it was pretty clean. Thanks for the suggestion though.

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 Post subject: Re: Check engine light for Glow Plugs and MAF
PostPosted: Wed Jan 03, 2018 11:18 pm 
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Ha! I guess I would have know if I'd read your signature. :roll:


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 Post subject: Check engine light for Glow Plugs and MAF
PostPosted: Wed Jan 03, 2018 11:30 pm 
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dskater411 wrote:
Hi All

I have pulled 3/4 glow plugs (just removed the EGR/intake elbow and letting the last one behind soak in pb blaster), and now trying to track down the likely cause(s) of the following check engine lights-

P0299-turbo underboost
P0102-maf circuit low

-I pulled all the intake hoses, the turbo to intercooler and intercooler to manifold hoses look good to me, cleaning them up now.
-The airbox to turbo hose is falling apart around the turbo c-clamp area but not enough to make me think it was leaking. I'm ordering a new one anyway.
-Turbo inlet blades look good and spin freely, no shaft play
-The FCV isn't stuck, it moves freely. Does this mean the entire part is ok or is there any other test I can perform to rule this piece out as being the problem?
-Anything else I can check that could be the culprit? Vacuum lines? If so specifically where and what should I check? I have no idle issues.

I do notice a slight lack of power when accelerating/climbing hills, the turbo spools up hard/loud but the car doesn't go very fast.

Appreciate the help!


Have you verified the maf is working with something like torque pro? As I mentioned above, mine was unplugged for a while and when I plugged it back in it was dead. I bought a new one and it fixed the code.

The maf isn’t needed so if you were willing to do a DIY or GDE tune the code would go away.

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2006 CRD - GTB2056 turbo by Dieselguy86, Eco Trans Tune, Lift Pump, Week's, HDS Tstat, Racor Filter, ARP's, OME 790's+Top Plate, JBA 2.5", JBA UCA, Moab's+265/75R16, ARB Bar

2014 F150 EcoBoost - Gearhead Tuned, AFE CAC, Bilstein 5100's, Airlift Bags, Duratracs


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 Post subject: Re: Check engine light for Glow Plugs and MAF
PostPosted: Wed Jan 03, 2018 11:58 pm 
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mass-hole wrote:
Have you verified the maf is working with something like torque pro? As I mentioned above, mine was unplugged for a while and when I plugged it back in it was dead. I bought a new one and it fixed the code.

The maf isn’t needed so if you were willing to do a DIY or GDE tune the code would go away.


I haven't ruled out a bad maf yet, but didn't want to just start replacing parts until I was sure I had checked everything I could first. Ill see if I can use my app to verify if its working, for some reason torque doesnt seem to work with my specific elm27 obd reader though, it wouldnt pull codes and I had to download something else.

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 Post subject: Re: Check engine light for Glow Plugs and MAF
PostPosted: Thu Jan 04, 2018 4:41 am 
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Location: Oregon Coast Dairy Country. Land of stumps, dumps, and "Liquid Pumps"
The default (no vacuum) condition of the VG Turbo is high rpm - max boost. If there is any leakage, kinkage or breakage of any component between the turbo and the vacuum pump, it can be unable to properly direct exhaust through the turbo, and it will not spool up at early or light throttle as it should.
This causes underboost, and will trip the MIL light usually at very light or off-line accelerator condition.

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 Post subject: Re: Check engine light for Glow Plugs and MAF
PostPosted: Thu Jan 04, 2018 9:24 am 
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Quote:
The default (no vacuum) condition of the VG Turbo is high rpm - max boost.

Incorrect.
The no vacuum condition for the turbo is low boost.
High vacuum = high boost.

I can see why this is confusing because at idle vacuum to the turbo actuator is high. This is only to reduce turbo lag when accelerating from a stop. Even with the actuator set at high, there is not enough exhaust flow at idle to produce any boost.
But if you bypass all the vacuum solenoids and just run high vacuum to the turbo actuator, you wont drive very far before a overboost code is set and the engine goes into limp mode.

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intake elbow and EGR delete. 5 volt bosch glow plugs
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 Post subject: Re: Check engine light for Glow Plugs and MAF
PostPosted: Thu Jan 04, 2018 9:41 am 
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Quote:
-Anything else I can check that could be the culprit? Vacuum lines? If so specifically where and what should I check? I have no idle issues.

The problem could be one or both of the vacuum solenoids.
You can bypass the small solenoid to see if that improves anything.

_________________
Bought my '05 CRD on June 2nd '07, used with 29,000 miles.
intake elbow and EGR delete. 5 volt bosch glow plugs
Yeti stage 2 ECU tune. Straight pipe exhaust. DIY intercooler hoses
Provent and modified factory 180F thermostat
Replaced cylinder head (cracked) at 160,000 miles + ARP studs
2.5 inch lift, JBA upper arms, 235-85-16 tires.
Still love it.


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 Post subject: Smog problem
PostPosted: Wed Jan 10, 2018 11:27 pm 
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Location: San Diego
Well good news and bad news for me.

Good-Got glow plugs replaced, EGR cleaned out and air hoses cleaned/replaced. Car runs much better now. I manually cleared my codes.

Bad-Wife took the car in to get smogged and the guy said he couldn't connect to the obd port

This is the 3rd time i've been to this shop for smog over the years, first time with this issue, kind of concerned. I searched around and read that our obd ports are finicky with some scanners (ive had this problem at a pepboys before) but I would just assume a smog shop shouldn't have this issue. The guy told my wife its the first time its happened to him so he didn't charge her anything.

I'm not sure what to do, go to another smog place? Go to the dealer and have them perform the F31 recall I read about?

Relevant info: 2006 CRD, I had the battery disconnected for a week while I worked on the car. When I re-connected battery, the check engine lights still remained (P0102, P0299, P1261, 1265, 1267), I used my ELM27 scanner to clear the codes, then drove over 300 miles over 5 days before taking it to smog. The guy didn't say the obd data wasn't ready, he said he couldnt connect to it at all with his scanner. I verified I could still connect to it with my elm27 too tonightl so I don't think its a problem on my side or could it still be somehow? I checked the port pins and don't see anything that looks physically wrong.

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 Post subject: Re: Check engine light for Glow Plugs and MAF
PostPosted: Thu Jan 11, 2018 12:51 am 
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Image

This is my current status, should I expect to see the egr or anything else report as ready or is this all the card should report via the obd port?

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