Skip the auto shop - Our mechanics make house calls

Q: KOEO test code 332

asked by on

Hi, i have a 95 f150 302, CEL on, code 332 KOEO test. "Insufficient EGR flow" Starts fine, idles fine but has no power in 4th, 5th gear, uphills, under load, or throttle pressed quickly half way down. I've tuned it up, new vacuum hoses on, vacuum reservoir is good, replaced EGR, EVP, EGR solenoid, MAP sensor, fuel filter, new ICM cleared code 212. I can hear the fuel pump turn on but could it be going bad? Whats next? I passed emissions test 2 weeks ago, so would i pass if bad cat. converter? All posts online do not have a solution posted, they just end? going crazy! Thanks. Luke

My car has 200000 miles.
My car has a manual transmission.

A: Hello there, A few different things can cau...

Hello there, A few different things can cause insufficient EGR flow. The most likely are:

  • a stuck closed EGR valve
  • a failed EGR valve solenoid
  • faulty oxygen sensor
  • low fuel pressure
  • exhaust leak

These can also result in the reduced power output you have noted.

A qualified technician, such as one from YourMechanic, will be able to diagnose your Check Engine Light and perform any repairs required.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Heard a pop under hood while driving and my car suddenly started running hot.

The first thing I would do is to open the hood and do a visual inspection. Look for a broken drive belt, or something else broken like a pulley or presence of fluid leaks. The loud pop and overheating symptoms...

Q: Car won't start spraid starter fluid in intake car turnd on but then shut of on self

Due to your symptoms, I would recommend having the fuel pressure tested by a qualified mechanic. The fuel pressure specification is set by the manufacturer and if the fuel pressure of your vehicle is lower than what was specified, the...

Q: Jeep 2014 Patriot Throttle Body

Hello. Diagnosisng the issue from here will take some trial and error. You should look into having the mass airflow senor checked. This sensor is responsible for telling the computer how much airflow is coming into the engine. The codes...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.