Misfires after Injector Cleaning

[blk04ultraA4]

So I was having an occasional misfire issues and decided to change the o rings on my injectors because there were signs of them leaking on the intake runners. I also did a compression test while I was at it see what my engine was putting out at 127k miles...155-160 on all 4 cylinders so that made me feel pretty good. I cleaned and reinstalled my injectors however in the process broke one of the plugs that snaps into the housing on the front cam sensor. The plug still snaps into the male plug but the male housing broke away from the aluminum cam cover. I didn't think it would be a big deal. So I started the car and fired right up and idled pretty smooth but all of a sudden started misfiring like crazy. Pulled codes for p1364 1355 1358 1361 for open ignition circuit on all 4 cylinders. My question is could this be caused by breaking that housing on the cam sensor even though the wires were all still connected? Can any malfunction in the injector harness or seats cause these codes or is this strictly ignition. The only other ignition source I messed around with was disconnecting my 034 ignition harness from the coil packs when doing the compression test. I'm thinking that maybe when I plugged t back in I messed up some of the connectors in the plug. Any thoughts would be great. Thanks.

[blk04ultraA4]

So after checking everything I found that I had broke a wire inside the cam position housing sensor....hopefully this was the cause for all the misfires yesterday. Just curious why I didn't get a specific implausible signal for the cam sensor itself. See pics below. [IMG][/IMG]
[IMG][/IMG]

[blk04ultraA4]

So I fixed the plug and wire to the cam position sensor and now when I start the car I am getting a misfire on cylinder 4. I pulled the plug and its soaked. Could anything I have done make the injector flood out the cylinder? Could the injector not be seated properly? Should the injector be tight in the liner intake seats or tight against the rail?

[dozanti]

The injector is probably stuck open. How did you clean them? ultrasonic?

[blk04ultraA4]

damn I knew I screwed it up! No i just used carb and throttle cleaner...sprayed it in each port and then used compressed air to blow out each port end.

[blk04ultraA4]

So dozanti did I ruin my injector or is there a way to get it free from not sticking. I know I definitely have spark as I checked all my coils and plugs already. Thanks.

[blk04ultraA4]

Replaced the injector and now it is back misfiring on cylinder 3....I am really lost on this one. I guess what I need to know is if this would be strictly an injector problem since I definitely know all my coil packs are good. The only thing I can think of is my injector wiring harness could be junk now that I pulled it back away real far when I removed my injectors. I do have cracked insulation at all the wires and boots going into the plugs.

[blk04ultraA4]

bump

[blk04ultraA4]

spent all morning looking over connections and wires...currently cleaning all the grounds. I vag'd the car after another attempt and get the following - after I already cleared the engine cylinder misfire codes....could I have a bad ecu? I thought it could be grounds b/c a wile back when it was raining out my dash lights began to flicker....what can I check for next?

Saturday,26,January,2013,11:41:47:06065
VCDS Version: Release 11.11.5
Data version: 20121222



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 8E - Audi A4 B6/B7
Scan: 01 02 03 08 09 0F 11 15 16 17 18 36 37 45 46 55 56 57 65 67
69 75 76 77

VIN: WAULC68E74A179366 Mileage: 203720km/126585miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 06B-909-518-AMB.lbl
Part No SW: 8E0 909 518 AK HW: 8E0 909 018 A
Component: 1.8L R4/5VT G 0004
Coding: 0016711
Shop #: WSC 13107 284 452198
VCID: 79E738D833CEE3D0662

No fault code found.
Readiness: 0110 1101

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-517.lbl
Part No: 8E0 614 517 A
Component: ABS/ESP allrad 3429
Coding: 04275
Shop #: WSC 06435
VCID: 265D23A4C2F0BC287B0

No Faults Found
or DTCs not supported by controller
or a communication error occurred

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8E0-820-043.lbl
Part No: 8E0 820 043 AD
Component: A4 Klimaautomat 1323
Coding: 00000
Shop #: WSC 63351
VCID: 63DB7AB0F14209005CE

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 8E0-907-279-8E2.lbl
Part No: 8E0 907 279 F
Component: int. Lastmodul RDW 0517
Coding: 01011
Shop #: WSC 63351
VCID: 357FF4E80F56C7B0C2A

1 Fault Found:
02104 - Light Detection Sensor (G399)
29-10 - Short to Ground - Intermittent

-------------------------------------------------------------------------------
Address 0F: Digital Radio Labels: 8E0-035-593-SIR.lbl
Part No: 8E0 035 593
Component: SDAR SIRIUS 0010
VCID: E6DDE3A48270FC283B0

1 Fault Found:
02635 - Tuner Not Enabled/Activated
35-00 - -

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8E0-959-655-84.lbl
Part No: 8E0 959 655 K
Component: Airbag 8.4EP 1001
Coding: 0010607
Shop #: WSC 63351 000 00000
VCID: 3F9396C06D6A0DE0186

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 8E0-953-549.lbl
Part No: 8E0 953 549 N
Component: Lenksáulenmodul 0611
Coding: 01041
Shop #: WSC 63351
VCID: 3E6DEBC43A6004E8130

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8E0-920-9xx-8E2.lbl
Part No: 8E0 920 950 P
Component: KOMBI+WEGFAHRS. RB4 D42
Coding: 01231
Shop #: WSC 12345
VCID: 367DF3E41250CCA8CB0
WAULC68E74A179366 AUZ6Z0C0431204

1 Fault Found:
01314 - Engine Control Module
49-10 - No Communications - Intermittent

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 8E0-959-433-MAX.lbl
Part No: 8E0 959 433 BB
Component: Komfortgerát T7B 1512
Coding: 11884
Shop #: WSC 63351
VCID: 72F50FF43EB89088278

Subsystem 1 - Part No: 8E1959801
Component: Tõrsteuer.FS BRM 0004

Subsystem 2 - Part No: 8E1959802E
Component: Tõrsteuer.BF BRM 0004

Subsystem 3 - Part No: 8E0959801A
Component: Tõrsteuer.HL BRM 0004

Subsystem 4 - Part No: 8E0959802A
Component: Tõrsteuer.HR BRM 0004

3 Faults Found:
01374 - Alarm triggered by Terminal 15
35-00 - -
01371 - Alarm triggered by Door Contact Switch; Driver's Side
35-00 - -
01562 - Right Rear Door
59-10 - Can't Unlock - Intermittent

-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 4Z7-907-357.lbl
Part No: 4Z7 907 357
Component: dynamische LWR D09
Coding: 00060
Shop #: WSC 63351
VCID: 0419592C140CAE38054

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio Labels: 8E0-035-1xx-56.lbl
Part No: 8E0 035 195 H
Component: symphony II NP2 0410
Coding: 01000
Shop #: WSC 87808
VCID: 2C49D18CDC1C8678AD4

2 Faults Found:
00466 - Control Module for Steering Column Electronics (J527)
49-10 - No Communications - Intermittent
00878 - Connection to Speaker Front Left
36-10 - Open Circuit - Intermittent

End ---------------------------------------------------------------------

[blk04ultraA4]

I need 2 questions answered:
1. Will a faulty injector cause misfires and flood out the cylinder if stuck open? Could I have damaged them by using compressed air to clean then?
2. If so would I get a specific injector fault code instead of p301 cylinder misfire?

[blk04ultraA4]

Bump

[blk04ultraA4]

Replaced injectors and it runs fine. Need to learn to keep my hands off this finicky engine....I break more than I fix it seems! Wheeww...that was a close one!