My friend scanned my 2000 1.8t, and he gave me this:
P1113 - Bank1-Sensor1 Internal Resistance too High
P0140 - O2 Sensor Circ.,Bank1-Sensor2 No Activity Detected
P0300 - Random/Multiple Cylinder Misfire Detected
P0304 - Cyl.4 Misfire Detected
P1602 - Power Supply (B+) Terminal 30 Low Voltage
P0102 - Mass or Volume Air Flow Circ Low Input
any suggerstions with what to start? or how to fix?
oh my CEL was on before but he errased and it hasnt come back on
thanks

 

how long ago were the codes cleared? If you don't know when then you don't know when these codes were caused. clear the codes wait a week and check it again.

 

yup^ who knows how long those codes have been stored.. Clear them and start fresh, scan again in a week.

 

Agree. Clear them and see what comes back.

 

Correct me if I am wrong but if the resistance is to high the injector wont open up as much as its supposed to, and you will be running lean. If it were me I would just get a set of new injectors to be safe, regardless if the code came back, or your going to start loosing compression.

 

first start by listing what mods are on the car....then, if you have a vag-com, check which cylinders are misfiring and swap the coil packs from the cylinder that isnt misfiring to the cylinder that is...if that fixes that cylinder that was misfiring, then you have a bad coil pack..im leaning more toward the spark plugs...how long has it been since you changed the spark plugs ...also make sure they are properly and tightly gapped - could also be why you are misfiring...clean your maf sensor with electronics cleaner or 99% isopropyl and see if you still throw the code for low input... and sirfalconx, you are right in the sense that if the resistance is high, you are running lean, but it does not neccessarily mean that it's your injectors...