Q: Codes p0101, p0131, p0137, p0151 & p0327 I guess I'm asking would replacing the ECM solve the problem? 2002 Chevrolet Blazer

asked by on

I have a 2002 chevy blazer that has had the service engine code on for about a year. The original code it pulled was the p0101 for the mass air flow sensor. we cleaned it and it went away. The check engine soon light would come on periodically but we just ignored it. Now its pulling all the different codes listed above. This car shows none of the signs of needing the ECM replaced but that is what has been recommended to me. I guess I'm asking if there is an easier place to start? It obviously is an older car and i hate putting large amounts of money into it if its unneeded. The only reason this is a concern is because we live in an area that has e check and we can't get the vehicle registered without passing e check.

My car has 140000 miles.
My car has an automatic transmission.

Hello - the codes you list (besides the P0101 for the MAF) reference problems with the oxygen sensors and a knock sensor (P0327) for your engine. These are normal higher mileage maintenance items, and do NOT require replacing the ECU. I would recommend oxygen sensor replacement(s) as necessary, and a knock sensor replacement, by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, and make these repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Codes p0101, p0131, p0137, p0151 & p0327 I guess I'm asking would replacing the ECM solve the problem? 2002 Chevrolet Blazer

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 95 blazer s10 wont crank or start

If you're not getting any click or sound at all, then it's likely that you have a problem at the ignition switch, a starter relay, or the associated wiring. In older cars, sometimes it just takes a hand under the...

Q: Not sure if I messed up my engine

Hello Sir, From the symptoms you describe it would not appear to me that you have messed up your engine. Usually a Check Engine Light that is flashing means that there is a problem with the vehicle that is...

Q: My car starts sometimes and other times it cranks over like normal but won't start.

First check on your vehicle service records to see if the maintenance is up to date. If you can smell fuel at the back of the car while the car will not start then you may have an issue with...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...