Diagnostic fault code 33. 1.4 TU engine

[Paulgtx 0]

Hi

 

I have done the old moorse code diagnostic testing on the 205 gtx 1.4 year 1993

 

It's coming back with 33

 

Have check the fault codes for old Peugeot using Haynes (image attached below) 

 

33 fault code has 3 different types of fault codes. I'm guessing it depends what model you have

 

The 3 fault codes are

 

33. Air flow sensor

33. Map sensor

33. Throttle position sensor

 

Just wondering what code would be the right one for my 1.4 gtx TU3M/Z PSA engine with Bosch Mono-jetronic injection system with Catalytic converter

 

I have been looking for a map sensor but can't seem to find it in the engine bay. Took air filter housing out etc

 

Any help appreciated 

 

 

[SRDT 146]

Not AFM for sure and I don't think there is a MAP sensor on the early Bosch ECU so it must be the TPS.

The MAP sensor can be external in the engine bay or hidden inside the ECU so you can look for some vacuum tube going to the ECU just in case.