okie...ill try seafoam tomorrow and will get a new ECT..theyre cheap enough... thanks !

 

with as much as you've already replaced check for compression, just a thought

 

i did a compression test when i first bought it...its perfect...it was rebuilt about 4-5000 miles ago

 

The ECT (on chevies anyway) can make the motor think it is operating at -99 degrees, and cause them to run incredibly rich. As far as audis, I cannot be sure.

 

here is the VAG COM readouts:

VAG-COM Version: Release 409.1-S
Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,17,25,35,45,55,56

-------------------------------------------------------------------------------
Address 01: Engine
Controller: 8D0 907 557 P
Component: 1.8L R4/5VT MOTR HS D07
Coding: 06001
Shop #: WSC 05314
9 Faults Found:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-00 - -
16685 - Cylinder 1 Misfire Detected
P0301 - 35-00 - -
16688 - Cylinder 4 Misfire Detected
P0304 - 35-00 - -
16686 - Cylinder 2 Misfire Detected
P0302 - 35-00 - -
16687 - Cylinder 3 Misfire Detected
P0303 - 35-00 - -
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16685 - Cylinder 1 Misfire Detected
P0301 - 35-10 - - - Intermittent
16688 - Cylinder 4 Misfire Detected
P0304 - 35-10 - - - Intermittent
16686 - Cylinder 2 Misfire Detected
P0302 - 35-10 - - - Intermittent
Readiness: 0010 0001

-------------------------------------------------------------------------------
Address 03: ABS Brakes
Controller: 8E0 614 111 M
Component: ABS/EDS 5.3 QUATTRO D31
Coding: 0273004134
Shop #: BB 24302
No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC
Controller: 8L0 820 043 D
Note: Excessive Comm Errors

-------------------------------------------------------------------------------
Skipping Address 15-Airbags

-------------------------------------------------------------------------------
Address 17: Instruments
Controller: 8D0 919 910 P
Component: B5-KOMBIINSTR. VDO D02
Coding: 02242
Shop #: WSC 00000
No fault code found.

-------------------------------------------------------------------------------
Address 35: Centr. Locks
Controller: 8L0 862 257 N
Component: CV-Pump D05
Coding: 16140
Shop #: WSC 06435
11 Faults Found:
01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
35-00 - -
01371 - Alarm triggered by Door Contact Switch: Driver's Side
35-00 - -
01374 - Alarm triggered by Terminal 15
35-00 - -
01370 - Alarm triggered by Interior Monitoring
35-00 - -
01369 - Alarm triggered by Hood Switch
35-00 - -
01366 - Opened Due to Crash Signal
35-00 - -
01362 - Close Switch for Tailgate/Trunk (F124)
29-00 - Short to Ground
01365 - Lock/Unlock Switch: Interior
29-00 - Short to Ground
00991 - Interior Lights
28-00 - Short to B+
00955 - Key 1
09-00 - Adaptation Limit Surpassed
00956 - Key 2
09-00 - Adaptation Limit Surpassed

-------------------------------------------------------------------------------
Address 45: Inter. Monitor
Controller: 4B0 951 173
Component: Innenraumueberw. D03
Coding: 00101
Shop #: WSC 06435
4 Faults Found:
01380 - Alarm triggered by Anti-Theft Sensor: Rear Left
35-00 - -
01381 - Alarm triggered by Anti-Theft Sensor: Rear Right
35-00 - -
01382 - Alarm triggered by Anti-Theft Sensor: Front Left
35-00 - -
01383 - Alarm triggered by Anti-Theft Sensor: Front Right
35-00 - -

End --------------------------------------------------------------------------------------------------
"

 

i cleared all codes, most were probably just old stored ones, but the misfires keep coming back....i started to check the live view data log while idling / driving and noticed that my timing at idle is EXTREMELY sporadic and bouncy... it honestly goes like "6.4...2.1....14.3....11.2...15.8...8.2...0.4...14 .2" and so forth

is there an option to use to save a log in VAG-COM software?

anyways...i think that could be causing my intermittent misfiring issues

anyone have anything to suggest?

also - idle is roughly 800-920, it bumps around, but i think thats due to the cams

 

BUMP....can we get a tech certified in here!!????

 

my Readiness is still saying O2 Sensors and Cat. are failing or incomplete (after about 50 miles of driving after reset)

my new codes pulled show 5 now:

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

Sunday, 13 April 2008, 09:23:42

VAG-COM Version: Release 409.1-S

Control Module Part Number: 8D0 907 557 P

Component and/or Version: 1.8L R4/5VT MOTR HS D07

Software Coding: 06001

Work Shop Code: WSC 05314

5 Faults Found:

16684 - Random/Multiple Cylinder Misfire Detected

P0300 - 35-00 - -

16688 - Cylinder 4 Misfire Detected

P0304 - 35-00 - -

16686 - Cylinder 2 Misfire Detected

P0302 - 35-00 - -

16687 - Cylinder 3 Misfire Detected

P0303 - 35-10 - - - Intermittent

17708 - Misfire Detected. Probably Reason: Low Fuel

P1300 - 35-10 - - - Intermittent

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


here are my logs i just took: i have no clue how to upload them to this server for download, so i put them on some uploading site online

if it requires a PW to open it is "audi" without the " , if you have a better place or idea how to host the files, let me know please

1st log is for timing, viewing Blocks 02, 03, and 18

http://www.uploading.com/files....html

2nd log is for misfires, viewing Blocks 14, 15, and 16 (and HOLY CRAP, LOTS OF MISFIRES!!!!!!)

http://www.uploading.com/files....html

 

If the engine is still running strong and your registering miss-fires on all your cylinders your probably looking at a faulty CTS (coolant temp sensor) as hiwords said. Replace that and erase the fault codes. If that doesn't fix it, i would be looking at your mods. It might have too large of injectors forthe ECM's programming, or a miss-matched MAF sensor ect.

 

hey thanks,

in my first post i have what has already been replaced:

coil packs, spark plugs, ICM, and CTS/ECT have all been replaced already

i have stock injectors....270 degree piper cams...borla catback....GIAC chip....SARD FPR set at 5 bar

engine running VERY strong...it has only 5000ish miles on the rebuilt motor...misfires on all cyls at idle, no misfires while driving

mismatched MAF sensor??? how would it be mismatched?