Pcm ecu car won't start

asked by on

Replaced pcm and the car started and worked just fine for about a week, came home and parked the car, the next day the car wouldn't start. Called a mechanic he said the coil ignition wasn't reading from the computer. I called the place I got the pcm from they said it was my ecu, replaced my ecu now my car still will not start. The batteries fine the started good. I don't have much money to get it towed somewhere.

My car has 155000 miles.
My car has an automatic transmission.

Assuming the ECM is still working enough to report problems, getting any problem codes out of the system with a code reader is your best clue at this point - whether the Check Engine Light is illuminated or not.

If the engine will turn over - does it have spark at the spark plugs? If so, does spritzing starter fluid while starting get the engine to start briefly? Simply narrowing your search with codes and fuel/spark information goes a long way to getting you back on the road.

If you need help with this, I would recommend having your no start condition diagnosed by YourMechanic to inspect this problem, get an accurate assessment of damage, and a cost estimate for repairs. YourMechanic.com can dispatch a mobile, professional mechanic to your location for this repair.

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

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

Car has burned plastic smell.

If you see smoke get out and dial 911 a car fire can start very quickly and without warning in some cases. If there is no visible smoke and its just a nuisance smell, I would suspect something in the...

When I come to a stop my truck will lunge forward and sound like it revs up a little

This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a load put on the motor (i.e. putting it in gear, making turns (which makes use of the power steering pressure switch) turning on...

Car won't start after flooring accelerator while going 75 MPH.

Your Dodge Stratus sounds as if it may be experiencing a serious problem. The initial symptom of the RPMs jumping from maximum to 2000 RPMS, appears to reveal that your transmission has slipped out of gear. The maxing out of...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 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 pressure sensor B input circuit range or performance...
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.