You can get different meanings of the engine C1888 Code but you need to find the actual meaning what you may get from the car manufacturer. You will get automobile dictionary meaning from online easily. That is why, you need to use a search engine. However, the general meaning of the engine is C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 8 means Ignition System Or Misfire. 8 for Exhaust Gas Recirculation System Valve 1 and 8 for PCM Stack Overrun. Do not use this meaning for fixing the car engine problem.