Need to scan 1993 Jetta

[offroadzj]

@Mk4 30R

give me the engine and ill give you a couple benny’s

obd1 sucks for diagnostics.

basically youve got the:

coil
plugs
wires
distributor/cap/rotor
02 sensor
MAF
Coolant temp sensor(highly likely its the issue)
TPS

its obviously getting fuel.

but its flooding you say, if the car is not seeing proper coolant temp to the ECU it might still be operating in the cold start mode.

1. Swapped the coil from the Golf which is only about 3 months old –> No change

2. Swapped plugs, wires, cap, rotor with Golf which were only about 3 months old –> No change

3. Swapped o2 sensor with Golf which ran fine –> No change.

4. Swapped MAF with Golf which ran fine –> No change.

5. Swapped both coolant sensors from the Golf –> no change.

6. Though about the TPS but they are different between the two cars so I couldn’t swap them.

I thought about the cold start, but lately it just plain won’t start at all. I would think even with the cold start, that it would atleast start… it would just run very rough.