P2610 code aveo 2009

o2 sensors are purely there to meter the fuel / air into the engine based on throttle position.

You need an auto electrician with a pro grade scan tool computer.

This site has the better description of the issue. It is a timer issue where the engine control module doesn't know how long the engine has been off.

https://www.yourmechanic.com/article/p2610-obd-ii-trouble-code-ecm-pcm-internal-engine-off-timer-performance-by-jay-safford

https://www.google.com/search?q=cadillac+p2610

plugs are the last point for engine missing.
check fuel pressure , injector/s HT leads , cracked distributor cap, moisture on coil/s, vacuum leaks,.
run the fault codes

Error p2610 means the clock in the ECM and soaker timer of the EVAP system doesn't syncronize. Usually that is caused by a bad ECM since it's all built-in. Try clearing the code first to see if it happens again.

If a P2610 has been verified do not replace the ECM. Perform the following steps when encountering a P2610.

Turn the IGNITION OFF for 90 seconds. Unplug both the engine control module (ECM) connectors for 90 seconds. After 90 seconds has passed, re-install the ECM connectors. With the ignition on use the Tech2 and clear all codes in the ECM. This procedure should prevent future sets of the P2610. For 2006 and certain 2007 model vehicles, there may also be a calibration update available which addresses P2610 false sets.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

code po171 in chevrolate aveo 2010

In general terms, if all of the fuses and connectors are ok, the problem is inside the power control module (PCM). Could be a bad connection somewhere from the water problem.
I would take it back to the dealer again for a look at the warranty coverage if everything checks out with the fuses and connections.

BEFORE ANY THING. CK YOUR CABLES TO THE PCM. TAKE THEM OUT AND PUT THEM BACK IN. ALSO, MAKE SURE MASS AIR FLOW CONNECTIONS ARE TIGHT.

The unique way to know what means this warning is scanning the PCM (Powertrain Control Module); visit Autozone or AutoShop with OBD scanner reader and note this fault code.

With this code number could send additional details to diagnostic and solve it. Keep in touch.

p2610 is engine contro module or ecu the cars main computer for both fuel injection and ignition,Remove the large block connector going to the ecu and spray both with contact cleaner,should sort it.