Sevice light came on and these codes came up. Noticed fuel leaking from back injector line, tightened up, and service light is still on. Any suggestions as to what the problem is?
Code 88 is for the fuel pressure being too high.
Code 251 is for a problem with the fuel volume / quantity sensor which measures the amount of fuel in the line.
SOURCE: 1993 Dodge Caravan
I had exactly the same problem after I changed the fuel filter. Tried new clamps and tightening them etc. Nothing worked until I purchased a foot long hose from a auto store for couple bucks and replaced the both ends with the new hoses. Old hose hardens over time and it doesn't seal well after it has been reused.
SOURCE: fuel leaking at or near injector rail
if all the injestors on the rail came out i would replace the all
SOURCE: have fuel leak at injector probaly cracked
if i remember correctly the outer most lines from the pump should come off at the same time. The back half should do the same. They fallow the fireing order. The isolators are needed to keep vibration from rubbing the lines. Good luck.
P0174 - Fuel Injection System Too Lean Bank 2
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
Possible causes
- Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection
Possible solution
Dirty air filter of faulty air flow sensor are common causes of the problem.
Bottom line possible defective Mass airflow sensor and or O2 sensor in cylinder bank number two.
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