ok i have a check engine light code 43 fuel supply

upon start up there is no check engine light only after you drive the car for 15 min does the check engine light come on, once you turn the car off it takes another 15 min for the check engine light to re-appear

i have tried to replace many things to fix this code all the items that were replaced came from a donor vehicle that had no check engine codes what so ever

items replaced

1. o2 sensor
2. fuel filter
3. fuel pump
4. main relay
5. ecu
6. injectors
7. fpr
8. gas cap

car is a 93 hatch obd1 b18b1 swap

 

the smog guy told me that there could be a pressure leak in the tank or in the lines to the charcoal canister. maybe you can get one and try it...like one off a friends car so you dont have to pay 175 bucks for a new one without knowing. my 43 code was the gas cap. but try using a friends canister if you can.

 

need more ideas

 

 

 

hope those help. print them before ALLDATA removes them

 

need help the above didnt help