Code p00CA, engine will not crank?

K THOMAS

MEMBER
2017 CHEVROLET MALIBU
2.0L
4 CYL
2WD
AUTOMATIC
80,000 MILES

I had code p00CA, I changed the fuel rail fuel pressure sensor then tried starting the car, but it would just keep turning over and would not start, waited a minute and then tried again when I pushed the start button, it did nothing at all not even turn over. I did not see the security light come on. The battery is brand new and is fully charged. Any suggestions on what I should do? I just replaced the ECM and was programmed by a GM dealer, could the ECM have gone bad again?

2 Replies

KEN L

MASTER CERTIFIED MECHANIC
42,913 POSTS

It sounds like you're dealing with a complex issue with your 2017 Chevrolet Malibu. Since you've already replaced the fuel rail fuel pressure sensor and the ECM has been replaced and programmed by a GM dealer, it's important to consider a few possibilities to troubleshoot the problem further:

Diagnostic Trouble Codes (DTCs): Even if you didn't see the security light come on, it's worth checking for any additional diagnostic trouble codes (DTCs) that may be stored in the vehicle's computer system. These codes could provide additional insight into what might be causing the issue.

Security System: While you didn't mention seeing the security light, issues with the vehicle's security system could potentially cause a no-start condition. Try using the key fob to lock and unlock the doors and see if the vehicle starts. If there's an issue with the security system, it might prevent the vehicle from starting.

Battery Voltage: Even though you mentioned the battery is brand new and fully charged, it's still worth checking the battery voltage using a multimeter. Make sure the terminals are clean and secure. Low battery voltage or poor connections can lead to starting problems.

ECM Programming: Since you mentioned replacing the ECM and having it programmed by a GM dealer, it's unlikely that the ECM has gone bad again so soon. However, it's not entirely impossible. Double-check all connections related to the ECM to ensure everything is properly connected.

Faulty Starter: A faulty starter motor can sometimes cause intermittent starting issues or prevent the vehicle from cranking. If the starter motor isn't engaging, the engine won't crank.

Ignition Switch: A malfunctioning ignition switch can also cause a no-start condition. If the switch isn't sending the correct signals to the vehicle's systems, it can prevent the engine from cranking or starting.

Wiring and Grounds: Check for any damaged wiring or loose grounds in the starting and ignition circuits. Even a small wiring issue can disrupt the starting process.