Fuel injection? 1990 Topaz-4 cylinder

Question edited into written English.
Question moved to model category.

Wow, that's bad!
Someone stealing your fuel? Hole in the fuel tank or lines?

The stats say
Regular Gasoline EPA Fuel Economy 17 MPG combined city/highway (15 City, 22 Highway) 5.9 gal/100mi 359 miles Total Range https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=25378

You need am auto electrician with a pro grade scan tool computer to check long term and short term fuel trim, check MAF and o2 efficiency. With that consumption your spark plugs should be black, if the engine management system is dumping fuel. The other possibility is that you are 'lead footed', racing from traffic lights, revving through gears, using 'kick down' all the time, and stomping on the brakes at the last minute. That would easily shave 50% off normal consumption.

https://www.google.com/search?q=2009+dodge+journey+bad+gas+economy

For the passenger heating, that one is easy, blend doors stuck, blend door actuator failed, or a linkage has come off. Videos show how to get there and check.

Renault Kangoo (KC) 1.4 i car data and specifications. Renault Kangoo (KC) 1.4 i car information and specs Bodywork Bodywork type Minivan Length (mm) 3995 Height (mm) 1827 Width (mm) 1663 Number of seats 5 Number of doors 4 Wheelbase (mm) 2600 Track rear (mm) 1418 Track front (mm) 1405 Ground clearance (mm) 140 Total (curb) weight (kg) 1155 Gross (max.) weight (kg) 1665 Max. cargo capacity (volume) 2600 Min. cargo capacity (volume) 650 Tires 165/70 R14 T Engine Engine displacement (cm3) 1390 Engine location Front, transverse Cylinder type In-line Bore (mm) 75.8 Number of cylinders 4 Compression ratio 9.5 Stroke (mm) 77 Valves per cylinder 2 Turbo - Fuel supply Distributed injection Engine power (hp) 75/5500 Engine torque 114/4250 Transmission Wheel drive Front Number of gears (automatic transmission) 4 Steering Type of steering Wheel-rail Power steering Hydraulic system Brakes Brakes rear Drum brakes Brakes front Ventilated disc brakes ABS + Performance Acceleration to 100 km/h 17.3 Fuel capacity (l) 50 Fuel consumption - city (l) 9.5 Fuel consumption - road (l) 6.3 Top (maximal) speed (km/h) 147

Renault Kangoo (KC) 1.4 i car bodywork specifications: Renault Kangoo is a minivan with 5 seats and has 4 doors. Dimensions information of car: 3995 mm long, 1827 mm high, 1663 mm wide. Other Renault Kangoo (KC) 1.4 i cars specs: 2600 mm wheelbase, rear track has 1418 mm, front track has 1405 mm, ground clearance - 140 mm. Total car weight is 1155 kg and 1665 kg of maximum weight, cargo capacity (volume) if from 650 to 2600. Tires type for Renault Kangoo (KC) 1.4 i is 165/70 R14 T. Car engine specifications: 1390 cm3 displacement, located front, transverse with in-line cylinders, 75.8 mm bore. Renault Kangoo (KC) 1.4 i has 4 cylinders. More car engine information: 9.5 compression ratio, 77 mm stroke, car has 2 valves per cylinder, distributed injection fuel supply type, engine power 75/5500 hp, engine torque equals 114/4250.
Transmission specifications of Renault Kangoo (KC) 1.4 i wheel drive is front, it has 4 gears of automatic transmission,.
Renault Kangoo (KC) 1.4 i has wheel-rail type of steering. And hydraulic system power steering.
Rear brakes are drum brakes. Front brakes specs: ventilated disc brakes.
Performance Renault Kangoo car data: it takes 17.3 sec. for Renault Kangoo (KC) 1.4 i to get 100 km/h speed. 147 km/h is the max speed. Renault Kangoo gasoline tank has 50 liters capacity. The car consumps 9.5 liters in the city, 6.3 liters on the road.


TMTM

no, the arrows simply mean that you can scroll through additional menus. the MPG is simply a calculation done by the computer monitoring fuel consumption compared to miles driven. if the numbers are going down since you acquired the car, there a several possibilities. your driving style - if you are a little heavier on the gas, brake a little harder, the numbers go down. if the previous owner drove primarily on the highway, and you are more towards the city driving pattern, the number will go down. depending on the mileage on the vehicle, it could also be do for some maintenance work, ie spark plugs, air filter, intake / injection cleaning. good luck!

Have actually done some research on those and found that the horsepower increase advertised is in the higher RPM band (where in essence it is unusable). As far as fuel consumption goes, there is always a "trade-off" when it comes to that. On earlier carbureted engines it was fairly easy to squeeze more mpg from what you drive. Today's injection systems are very precise, and more difficult to get much more than factory standards from them. Three items you can do to get better mpg are: Keep the air filter clean (vacuum and shake out once a month), Use a good quality synthetic oil in the engine. Make sure your ignition system is in good condition and not arcing anywhere. Keep wires clean and plugs properly gaped (if you can't light the fire, you waste the fuel in that cylinder).
A new problem we all face is the introduction of alcohol into our fuel...It does not produce the same btu's of heat when it burns...heat is power.
the more alcohol in a system the lower the mpg is because it takes two times the quantity of alcohol to make the same amount of power.
One other forgotten item is the fuel injectors. Even the most well filtered fuel carries a certain amount of abrasive grit with it. As it passes through the nozzles it enlarges them. This alters the amount of fuel going into the engine. That, coupled with even a small amount of gunk (they all get that to some degree) alters the spray pattern and decreases efficiency.
Back to the "chip" ...I haven't seen anything there that would in any way justify the cost there. If $ were no object, I'd be more likely to put a turbo-charger on the engine and start looking at add-on overdrive units.
That's where you can get good solid results! (but expensive)

Manual 20-25 Auto 20-24. 20 around town 25 motorway so average 22-23 mpg.

Tune ups, clean oil & filters , tire air pressure at rated as specied on door panel. good driving habits.. have dealer ck computer settings

Check your fuelpump

Did you fix this yet?
Are you getting fuel to the plugs?
Try starting the car, then remove one of the plugs. Check for the smell of fresh gasoline. You could also try smelling the exhaust to see if there is a fresh unburt gasoline smell.
If your getting fuel, then the fuel system is probably not the problem.
Are you getting spark to the plugs?
After you replaced the Distributor, did you adjust the timing?

If you have the RT with the 5.7 hemi as stated I do not beleive you ever got 27 to 29 miles to the gallon. the best that car will do is 24 - 25 miles to the gallon and that is on a pefectly flat and straight road at about 60 miles an hour. As fas as the MDS the best way to tell (if you can't feel it change) is to use a tool such as the dashawk that monitors the engine stats. I disabled the MDS for several reasons and really so little to no change in gas milage. I do not beleive the MDS helps as much as people would like to think. I have added a lot of mods to my hemi, but still think that 14 - 18 mpg under normal driveing is good for this car