Fuel consumption problems

[4x4fun]

Since ive got my 96 gtb running its been using 15-18l/100km with its new afm of mix of town and open road calmish driving :'( . this doesn't sound so good according to the other posts. I put it in diagnostics mode and pulled a code 21 and 31 (water temp sensor and throttle position) though i had no cel prior to running diagnostics mode. My question is how much will it cost to replace these sensors and wheres the best place to go? Also could it be this causing the problems? Thanks

[will i am]

i have a temp sensor and might have the tps

let me know the numbers on ya tps

[4x4fun]

Thanks, I think i have a ej20tt throttle body around here somewhere with a tps. water temp sensor would be appreciated providing its good. How much do you want for it?

[Guest S T E Y E]

if thr cel wasnt on but the codes pulled up that would indicate it logged the code...not necesarily meaning those parts are faulty....

reset ur ecu and check codes again as theyl probably vanish

worth a try anyway