codes

**vectra craig** · 24th January 2010, 21:59

could someone tell me wot these codes are: 2103, 0794, 0100, 0170, 1525, 1550, just done the brake/accelerator pedal test and these are the codes that have come up. surely they cant all be ****ed

**bigmac** · 24th January 2010, 22:14

U2103 - Fewer Controllers On Bus Than Programmed OR B2103 Antenna Not Connected
0794 ?
P0100 Mass or Volume Air Flow Circuit Malfunction
P0170 Fuel Trim Malfunction (Bank 1) (Maybe airflow meter)
P1525 Air Bypass Valve System
P1550 PSPS Out Of Self Test Range

**vectra craig** · 24th January 2010, 22:34

thnx bigmac, ive changed the air flow sensor (the thing between the air filter and the pipe) think its air flow sensor/meter about 3mths ago as the e.m.l came on, had the car on a computer, that said the air flow sensor was naff, and now the e.m.l is back on and ive got all these codes, how would you recommend i get this sorted? is it all down to one sensor or multiple sensors that need changing? im not sure whether i want to drive the car till ive got it sorted, i appreciate your help bigmac

**vectra craig** · 25th January 2010, 19:42

bigmac, any ideas mate?

**bigmac** · 25th January 2010, 20:18

tbh honest mate i havent got a clue where to start

best bet would be to take it to vauxhall or ask if anyone near you can clear codes then read codes for you.
You need to have the right codes available so we can ascertain where to go from here