as much as I step on the peddle my 05 Jeep Liberty crd does not blow any black smoke. I'm worried... I have egr codes and air flow code and low boost code


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Do you have a way to show what the MAP is reading? Maybe Torque on Android?

Is it low on power?

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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 Bull Bar, 4.10's, TrueTracs

torque on android? I'll take the map out to look at it but what's the map have anything to do with the smoke?


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it isn't low on power i don't think


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The MAP sensor measures the air pressure in the intake manifold, which helps the PCM determine how much fuel to inject.

Smoke would suggest that you are not getting enough air/boost, however you say you have full power and no smoke. That suggests to me that you are making plenty of boost. Why are you getting low boost codes then? I would guess that maybe the MAP is reading low and the jeep is trying to compensate and possibly over boosting in the process.

You should see 2200-2300 mbar of boost at full throttle. It hits about 2300 at ~2000rpm and drops to 2200 by 4000rpm.

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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 Bull Bar, 4.10's, TrueTracs

makes sense


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I feel the boost kick in pretty good at 3000


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None of my diesels intentionally put out smoke, and I got 6 of them.

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2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

crd?


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Of course, 2 Jeep CRD, 3 Sprinter CRD and John Deere 2305 mechanical injection.

Now if you get the GDE hot tune you will see some smoke on heavy acceleration.

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2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

Black smoke is unburnt fuel, stench, and a bad reputation for diesels.

Why would you need that, anyway?

Note: I usually drive pretty reserved, and rarely exceed 2,000 rpms. As such, I tend to get a little carbon build-up in my exhaust system. If someone pisses me off enough, I'll stop the throttle (bad for a diesel, I know) to hit 3K revs just enough to belch that cloud of built up crap out, but only if their windows are open.

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"Gunner": 2007 Jeep Grand Cherokee Limited CRD GDE ECO tune Bought 01Apr16 (71K miles)


If you're in New England and need your KJ TB done, PM me.

Retired:
Tractor: Dark Khaki '06 CRD Sport, GDE ECO & Trans Tunes, 2.5" lift + 245/75r16. - Sold 27Apr16
Ghost: Silver '06 KJ CRD Limited, bunch of goodies done - Sold 18Apr16

stomp on the peddle to smoke them?


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