Skip the auto shop - Our mechanics make house calls

Q: Won't start the car

asked by on

Hi, I have a Honda Civic 2006 Ex 4 dr, I just replace my engine because it had a block crack so after I swap my engine from a other car, but now everything is connected and reprogram the computer then when I try to turn on the car and it won't start, it only make crank but however it only start when I connect the Scanner to the car is does turn the car but whenever I remove the scanner from the car, it won't start up the car, what could be a problem?

My car has 160000 miles.
My car has an automatic transmission.

A: You might want to check to ensure all of th...

You might want to check to ensure all of the connectors are are secure. Sometimes a bad ground or power lead is at fault. By hooking up a scanner, you are completing the circuit through the scanner allowing the vehicle to start normally. Check your trouble codes, you may see one that is a PXXX code. The P indicates a network communication issue. Electrical concerns can be tricky, I suggest having a certified technician, like one from YourMechanic, perform some elecrtrical testing to determine the exact cause of your concern

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: Snapped bolt on front drive shaft. What is name of part? How mych does it cost? Is it hard to replace?

The inner end of the drive shaft on this vehicle is held within the transmission by a spring steel snap ring. The wheel bearing end of the axle is held on by the axle retaining nut. The wheel bearing hub...

Q: Car won't start after replacing cam sensor - 2006 Scion xA

Hello. You will need to have the computer scanned and system checked for codes indicating the problem. You may have a bad crankshaft sensor or computer problems with the anti-theft system. If you would like to have this corrected, consider...

Q: Repaired ABS module installed, but lights on and not shifting properly

Hello. This can be caused by a few different things, but most of the time it is caused by the transmission speed sensors. I usually test the sensors first and replace them if needed. This is going to be the...

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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...