Skip the auto shop - Our mechanics make house calls

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?

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
  • Home
  • Questions
  • 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: Check engine light on

The code indicates that the purge control system has a problem flowing fuel vapors, even though the system has turned off the control valve. This is most likely caused by a leaking purge control valve. Check the valve to see...

Q: Check Engine light comes on and goes off

If the speedometer is not working but the rest of the instrument cluster is, the issue is probably the vehicle speed sensor. This sensor is the main input to the control module for speedometer control. The problem could also be...

Q: The car started stalling after the sparkplugs were repleced

A thorough inspection of the following engine components should be performed: all vacuum lines and electrical connections intake air tube to the throttle body check for any loose, leaking connections If the problem cannot be diagnosed,...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...