Im@wesome~ out!

problem is fairly simple to describe...
If i put my foot to the floor i get throttle cut/surging... if i ease into it the car moves along fine ^^unchipped mode

if i put the car in chipped mode... i smell tons of gas exiting the exhaust pipe and the car runs like ****.

If i leave the car idling for more then 4-5 minutes the exhaust pipe lets out thick thick thick smoke... if i give it a bit of gas it goes away.

So ultimately this means there is a fueling issue... but what?
I have a new fuel filter... new injectors... new fuel pump relay.. new maf... new ecu...

I just got the car back from audi... after a hefty bill the problem with the grounding seems to still be there...
16490 - Manifold / Barometric Pressure Sensor (G71) / (F96): Implausible Signal
P0106 - 35-00 - -
18014 - Rough Road/Engine Torque Signal from ABS: Electrical Malfunction
P1606 - 35-00 - -
17833 - EVAP Purge Valve (N80): Short to Ground
P1425 - 35-00 - -
17955 - Boost Pressure Regulation Valve (N75): Short to Ground
P1547 - 35-00 - -
17525 - Oxygen (Lambda) Sensor Heating Circuit: B1 S2: Short to Ground
P1117 - 35-00 - -
17843 - Secondary Air Pump Relay (J299): Short to Ground
P1435 - 35-00 - -
17829 - Secondary Air Injection Solenoid Valve (N112): Short to Ground
P1421 - 35-00 - -
17697 - Boost Pressure Control Valve (N249): Short to Ground
P1289 - 35-00 - -
16622 - Manifold Pressure / Boost Sensor (G31): Signal too High
P0238 - 35-00 - -
17880 - EVAP Leak Detection Pump: Short to Ground
P1472 - 35-00 - -
16486 - Mass Air Flow Sensor (G70): Signal too Low

so all said and done I don't know wtf is up... im going to go scan the car again and see if i clear the codes.. if any of this will go away.

any ideas?
2001.5 a4 1.9L apr stg 3+ ... quattro manual

Nate (ETKA+Scumbag)

Oxygen sensor, fuel pump, and EVAP are my guesses.

qfrog Ti20

This is after they replaced your fuel pump relay which they thought was the cause of these faults?

Im@wesome~ out!

yar

Im@wesome~ out!

VAG-COM Version: Release 607.3-UD

Wednesday,12,September,2007,19:42:40

Chassis Type: 8D - Audi A4 B5
Scan: 01 02 03 08 15 16 17 25 35 37 45 55 56 57 67 75 76 77

-------------------------------------------------------------------------------
Address 01: Engine
Part No: 4B0 906 018 CH
Component: 1.8L R4/5VT G01*0002
Coding: 16001
Shop #: WSC 10002

14 Faults Found:
16490 - Manifold / Barometric Pressure Sensor (G71) / (F96): Implausible Signal
P0106 - 35-00 - -
18014 - Rough Road/Engine Torque Signal from ABS: Electrical Malfunction
P1606 - 35-00 - -
16622 - Manifold Pressure / Boost Sensor (G31): Signal too High
P0238 - 35-00 - -
17880 - EVAP Leak Detection Pump: Short to Ground
P1472 - 35-00 - -
17833 - EVAP Purge Valve (N80): Short to Ground
P1425 - 35-00 - -
17955 - Boost Pressure Regulation Valve (N75): Short to Ground
P1547 - 35-00 - -
17525 - Oxygen (Lambda) Sensor Heating Circuit: B1 S2: Short to Ground
P1117 - 35-10 - - - Intermittent
17843 - Secondary Air Pump Relay (J299): Short to Ground
P1435 - 35-00 - -
17829 - Secondary Air Injection Solenoid Valve (N112): Short to Ground
P1421 - 35-00 - -
17697 - Boost Pressure Control Valve (N249): Short to Ground
P1289 - 35-00 - -
16486 - Mass Air Flow Sensor (G70): Signal too Low
P0102 - 35-00 - -
17523 - Oxygen (Lambda) Sensor Heating: B1 S1: Short to Ground
P1115 - 35-00 - -
18020 - Engine Control Module Incorrectly Coded
P1612 - 35-00 - -
17511 - Oxygen (Lambda) Sensor Heating; B1 S1: Performance too Low

qfrog Ti20

Which could explain the incorrect A/F ratio.

n0yxl

I'd take a fine-toothed comb through the wiring harness, might have a pinched wire('s) somewhere.

Gldnrkt(GT3076R)

Check the wires going to the passenger side of the car, that's where all those components lead. Something shorted out and melted the wires in that part of the harness. I had to re-wire 5-6 items to make the car run right again. Runs like a top now though.

Allroady DungBeetle

I think there is something that got pinched/kinked. Either that or a bad ECU. (not likely but I would certainly NOT rule it out)

Mandeep: Have you tried or can you try a different ECU? That would be a quick easy thing to try to at least rule it out.

Allroady DungBeetle

Agree, the items are in the harness there and could have been hit/pinched with the motor instal.