My check engine light is on but I can't get any scanner to connect to the jeep. I've checked the fuse and it looks ok what else am I missing? I've been to oreilys and advance so far and their machine would t connect any help would be great. The light came on two days after I picked up the jeep from the dealer from getting the 6k in deer damage fixed.

Autozone was able to pull codes p0234 and p0073

P0234-BOOST PRESSURE SENSOR NEGATIVE DEVIATION.

P0073–AMBIENT AIR TEMPERATUR SENSOR CIRCUIT HIGH

since you just had front end repair

I'd guess on the side of someone didn't plug in all the wires or tighten hose clamps

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2005 CRD
stuff
Skeptic quod gratis asseritur, gratis negatur

now i dont have a air box i took that out months ago so the stuff that was plugged up there has been unplugged so where do i need to be looking for the other unplugged items? by the turbo? and just to be safe im going to pull the hoses and check for cracks, now if i do find cracks can i put 1000 mile an hour tape on it till i get new upgraded hoses ??

??

What are you doing to filter the air?

Air sensor is on the grill somewhere. Check out the noob guide at the top of this list...some useful info about the MAP sensor and links to manuals.

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George Reiswig
2005 Jeep Liberty CRD
Suncoast, SEGR, lift, InMotion tune, homebrew B100
At 138k, new head & gasket, timing belt, rockers and swearing vocabulary

i took the whole assembly out and put a 3in piece of pipe and a large cone filter and bolted it up to the intake tube and it works great it was the 1st thing i did to the jeep when i got it to me it seemed to increase power and mpg and you can hear the turbo as well

Awesome. But didn't you kind of expect that not having sensors plugged in would cause problems?

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George Reiswig
2005 Jeep Liberty CRD
Suncoast, SEGR, lift, InMotion tune, homebrew B100
At 138k, new head & gasket, timing belt, rockers and swearing vocabulary

nope i have the gde eco tune and it eliminates those sensors in the air box so they arent needed. the jeep has been running almost a year like this with no light so i know thats not the issue for the light. im looking now in the noob giude to see where the one in the grill is to go check to see if that one is hooked up or not and if i knew how to post pics i would show you my setup for my air filter

I'm not sure where I've seen that sensor shown. My rig threw the 0073 code when I had the grill/headlights unit disconnected entirely for a repair I was making. So check that largish connector near the driver's side headlight. But if your headlights work...don't know where the issue is.

But the MAP sensor has a good deal of discussion on this board. I don't know whether the MAP sensor in the intake manifold compares to the pressure on the sensor in the stock airbox, or how the GDE tune copes with that if there is such a comparison. But, again, if it has been acting fine up until now, check the MAP sensor itself.

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George Reiswig
2005 Jeep Liberty CRD
Suncoast, SEGR, lift, InMotion tune, homebrew B100
At 138k, new head & gasket, timing belt, rockers and swearing vocabulary

What we call the MAP sensor in the manifold measures both pressure and temperature. Sounds like that's your issue. $20 to find out.

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05CRD: GDE Hot ECU & TCM tunes, Provent, Cat filter, Facet lift pump, TransGo kit, Florida TC, Samcos, stainless brake lines, HDS thermostat, Renegade light bar,
RL super sliders, Bilstein adjustables, Al's Gen 4.5 Arms, 235/85-16 Duratracs, DTT rear, Elocker front, EVIC+TPMS, Turbo timer, McNally pillar gauges, Weeks Stage II kit.

P0073 for me was because I forgot to connect the headlight connector when putting together the headlight header back on.

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'06 Liberty CRD Limited. Bought at 91K miles.
ARP studs, New rockers, Stant inline tstat, Weeks 1&2, Provent, IDParts Silicone hoses,
2-1/2" Full OME lift, Timing belt, Water pump, TransGo kit, Plastic fan, Fumoto
2nd gen fuel head with 2nd stage 2 micron filter, in-tank lift pump, G2 Rear Diff Cover