Service engine soon; code to engine running too lean...

i think the check engine light caused by oxygen sensors,due to little misfire detected , fuel system ,bank 1 and bank 2 lean and rich mixtures..

Check your work for vacuum leaks,can't have any

Replace the front oxygen sensors, if they have 100,000
miles on them That is the 171&174 along with vacuum leaks
& worn out slow sensors

PO203 ---is a #3 injector issue

Listen to hear if it ticks-- like the others & compare
OHM readings to the others

Sometimes it's just a routine mileage thing other times it can actually be a fault code. You might run it by your local Autozone, Advance, etc.. parts store and they will do a FREE scan for you and reset the lights.

Scheduled Maintenance The service shown in this schedule up to 150,000 miles (250,000 km) should be performed after 150,000 miles (250,000 km) at the same intervals.
See Owner Inspections and Services for maintenance information.
Scheduled Maintenance Mileage
Maintenance Group No.
6,000 Miles (10 000 km)
1
18,000 Miles (30 000 km)
2
30,000 Miles (50 000 km)
3
36,000 Miles (60 000 km)
4
42,000 Miles (70 000 km)
1
50,000 Miles (83 000 km)
5
54,000 Miles (90 000 km)
2
60,000 Miles (100 000 km)
6
66,000 Miles (110 000 km)
1
72,000 Miles (120 000 km)
4
78,000 Miles (130 000 km)
1
90,000 Miles (150 000 km)
7
100,000 Miles (166 000 km)
8
102,000 Miles (170 000 km)
1
108,000 Miles (174 000 km)
4
114,000 Miles (190 000 km)
1
120,000 Miles (200 000 km)
6
126,000 Miles (210 000 km)
2
138,000 Miles (230 000 km)
1
150,000 Miles (250 000 km)
5
Maintenance Requirements - Group 1 • Rotate the tires. See Tire Inspection and Rotation for the proper rotation pattern and additional information. • Inspect the brake system. Check the brake calipers for freedom of movement and lubricate if required. • Inspect the exhaust system and shields. • Lubricate the door hinges, check links, hood and sunroof (if equipped). Maintenance Requirements - Group 2 • Rotate the tires. See Tire Inspection and Rotation for the proper rotation pattern and additional information. • Inspect the brake system. Check the brake calipers for freedom of movement and lubricate if required. • Inspect the exhaust system and shields. • Lubricate the door hinges, check links, hood and sunroof (if equipped). • Inspect the engine accessory drive belt and coolant hoses every 12 months or 18,000 miles (30,000 km), whichever occurs first. Maintenance Requirements - Group 3 • Rotate the tires. See Tire Inspection and Rotation for the proper rotation pattern and additional information. • Inspect the brake system. Check the brake calipers for freedom of movement and lubricate if required. • Inspect the exhaust system and shields. • Lubricate the door hinges, check links, hood and sunroof (if equipped). • Replace the engine air cleaner filter every 36 months or 30,000 mile (50,000 km), whichever occurs first. An Emission Control Service . (See footnote) • Inspect the vacuum lines/hoses every 24 months or 30,000 mile (50,000 km), whichever occurs first. An Emission Control Service . (See footnote) • Replace spark plugs. An Emission Control Service.

No, It needs to be scanned for codes. Autozone will do this for free

If it has been serviced correctly just take it aback and ask them to reset the warnibg light. If they can't then you should chose another garage to service it.

It is likely a warning that some major maintenance is coming due; for example, timing belt replacement, catalytic converter reaching end of life (typically 60,000 miles) or other. There is probably a procedure for resetting the warning without actually doing what is required.

need to know the code. most common codes found in this type vehicle are for Evap, EGR, lean codes for
vacuum leaks & misfire codes. let me know ... be glad to help

sounds like you have a vacuum leak, check all the vacuum hoses and replace any broken or kinked ones, also check around the intake manifold gasket for leaks. any air leaks after the air flow meter creates 'un-metered' air which inturn will make the car run rough and stall, hope this helps

A tune up will not cure the lean code, in fact an engine miss gives a rich code from the unburned fuel. I would suggest u verify u have no vacuum leaks, also clean the inside of the MAF sensor if so equipped and replaced the bank two O2 sensor, that is the passenger side sensor before the catalytic converter. If u have the money replace both right and left sensors, it is better to do them in pairs.