BFI PEM/C2 ABA chip owners, check in please....

[911_fan]

This poll is in regards to this thread:

http://forums.vwvortex.com/showthrea...s-amp-rev-hang

The purpose of this thread is simple; List your car info and an drivability issues associated with this tune you are experiencing. This is for those of you experiancing issues with the NA program.

Copy and paste this in your post response:

Model year:
Engine mods:
Software used:
Experienced issues:

It is vital that you are specific and honest to help diagnose this software issue.

[911_fan]

Model year: 1997
Engine mods: Both stock head, stock head with bigger cams, and fully modified motor
Software used: Both BFI PEM Stage 1 and Stage 2
Experienced issues: Occasional stalling during warm-up on very cold winter mornings. Idle hange @ 1500ish rpms when resetting battery/throttlebody, but always went away after adaptation (7ish cold starts)

[cm123]

Model year: 1998
Engine mods: stock motor besides intake and 2.5 exhaust with 42dd high flow cat
Software used: C2 stage1
Experienced issues: CEL for code P0172 (before chip was replaced i had horrible idling as well as the car shutting off after warm up cycle and while driving sometimes. also when it would shut off it would not turn on until the motor cooled down)

[gtiswapped96]

Model year:96 jetta aba
Engine mods: obd2 block with obd1 head (lightly port and polished ports)
270 cam with autotech adjstbl cam sprocket
Intake ,2.25" exhaust with headers no cat
Software used:BFI STG2 PEM (ORIGINAL TUNE)
Experienced issues:first installed the chip before waterfest17 the car pulled like a beast...then the rev hang began along with the aggressive bucking....car would die constantly so I raised the rev with the vag_ and it fixed that issue....cars only tried to stall twice since then compared to doing it constantly while driving. My CEL would POP everyday(p0172) which was annoying (all proper maintenance was done to try and diagnose the issue but came up empty)...then I got this cheap eBay part which is basically a huge vacuum leak and it stopped the CEL from coming on tho the code is still pending....the light just doesn't POP...anyways I got the upgraded tune but didn't install since this tune is shot also....so thats where I am....no visible CEL but couldn't escape the pending....so that's the story folks I gave up trying to figure this out....my last try was with the upgraded tune and since that went south I threw in the towel.

[JP_JETTA]

Model year: 1998
Engine mods:C2 Stage 2 270 cam specific PEM, test-pipe instead of CAT, super hockey-puck motor mount, 270 autotech cam, neuspeed adjustable cam pulley, big-hole-in-airbox mod, K&N panel filter, techtonics HD valve springs, deramped throttle body, pcv-to-the-ground bypass, so plug in the intake elbow deleted done back all the vacuum system.
Software used: C2 stage 2 270 cam specific PEM
Experienced issues: Knocking when letting gas go at low speeds, idle playing in the 1600-2100 RPM range while pressing clutch pedal at stops. At cold engine start, 10 seconds after starting, idle climbs up slowly to 2000, stalls for a couple seconds, than goes back down, and some random engine stalling issues.

[Fast VW]

Model year: 1997
Engine mods: TT266 cam, TT catback SS exhaust, modded air box
Software used: C2 custom tune for an automatic transmission
Experienced issues: When the engine is transitioning from "warm up" mode to warmed up, the idle will climb to 1600 or so rpm and hang for a few seconds. Then it will fall to 960 the climb to 1600 or so and hang. It will repeat this cyle until it is fully leaves "warm up" mode or until it is put into gear. If the car is still in warm up mode and you turn the AC on it will sometimes stall when stopping at a stop sign. I have a constant P0172 "pending" code. During one of the "idle climbs" I shut the motor off and immediately pulled a plug. It was SOAKED in gas.

[The Big V]

Model year: 1999
Engine mods: stock engine w/ TT Borla catback exhaust, K&N Panel filter, BFI hybrid engine/trans mount setup...[currently ported/deramped tbody on stock chip..ported head/cam/headers/etc soon]
Software used: BFI/C2 Stage 2 (original tune)
Experienced issues: CEL for ROM Error & P0172, bucking at low speed cruising 1st/2nd gear lower rpms....rev hang and rise issues/bad idle

[bluntman220]

Model year: 1998
Engine mods: stock engine w/ 268 Cam ,headers ,TT Borla catback exhaust, K&N cone filter, 2nd air delete
Software used: BFI/C2 Stage 2 (original tune)
Experienced issues:Occasional stalling during warm-up P0172, bucking at low speed cruising 1st/2nd gear lower rpms....rev hang and rise issues/bad idle

[greyhare]

Model year: 1996
Engine mods: Ported head, Piper 270 cam, TT high flow cat, 60mm cat back, MSD 6A and matching coil, custom intake with K&N, Neuspeed supercharger with 2.3" pulley, custom A/W intercooler, Aquamist water injection, 70mm MAF, 4bar FPR.
Software used: Early O2 control (30#) (Forced induction)
Experienced issues: Mild cold start issues; When very cold it is easy to stall and a PITA to restart, clears up and is happy with <100 yards drive.

[911_fan]

Model year: 1996
Engine mods: Ported head, Piper 270 cam, TT high flow cat, 60mm cat back, MSD 6A and matching coil, custom intake with K&N, Neuspeed supercharger with 2.3" pulley, custom A/W intercooler, Aquamist water injection, 70mm MAF, 4bar FPR.
Software used: Early O2 control (30#)
Experienced issues: Mild cold start issues; When very cold it is easy to stall and a PITA to restart, clears up and is happy with <100 yards drive.

You have FI software, right? This is for the NA software issues. I will update the original post to reflect this.

[Patrick007]

Model year: 1998
Engine mods: See sig
Software used: BFI Stage 2, Revision B (waiting on Revision C in the mail)
Experienced issues: Significant rev hang when changing gear or coming to a stop, especially with AC on, slight bucking at low rpm, seemingly elevated MAP (and actual) ignition timing when coming off the throttle (based on data logs), slightly elevated knock count during full throttle runs, will not pass CA emissions due to high NOx

-Patrick

[The Big V]

bump...and a ?-
is anyone with a stage 1 chip experiencing the rev hang/idle rise issues??

[MattySull]

FI Chip but experiencing all the same issues.
Model year: 1999
Engine mods: Turbo, 260 cam, 2.25" exhaust, 2" IC piping, 30lb injectors
Software used: C2 Stage 1 FI
Experienced issues: Bucking at low RPM and partial throttle, rev hang, rough cold start.

[Minor_Threat]

This doesn't really matter anymore since I have parted out the motor to make way for more horsepower

Model year: 1998
Engine mods: TT 276 cam, OBDII german head ported and polished, AEG lifters, dual valve springs, oversized valve conversion 35mm exhaust valves, 42mm intake valves, titianium valve spring retainers, decked head .002in, LW crank, alternator, intermediate shaft pulleys, OBX header, 42DD test pipe, LW and balanced flywheel, New South Performance intake manifold gasket, BBM 8mm plug wires. TT adjustable cam gear, BBM fuel rail, AC and P/S deleted, ARP headstuds
Software used: BFI PEM stage 2 for 272 cam
Experienced issues: no cold idle, have to hold throttle down in order for it to stay running until it starts to warm up. Idle jumps all over the place when cold. I did experience some bucking at h20 after cruising, didn't feel it again.

[Kabinotar]

Model year: 1997
Engine mods: Both stock head, stock head with bigger cams, and fully modified motor
Software used: Both BFI PEM Stage 1 and Stage 2
Experienced issues: Occasional stalling during warm-up on very cold winter mornings. Idle hange @ 1500ish rpms when resetting battery/throttlebody, but always went away after adaptation (7ish cold starts)

Trav-

I have your old chip still, but not sure which one (stg1 or stg2).

Model Year: 1998
Engine mods: None
Software: (see above)
Experienced Issues: No stalling, but high idle on warm up. Also get slight rev hang when clutch in/shifting but the idle always drops to normal after some regular driving.

[911_fan]

You got my stage 1 after I sold it when I ponged my head.

[Hurt]

Model year: 1996
Engine mods: Autotech's whole 270* cam kit (springs, retainers, cam, lifters..), INJEN intake, 60mm neuspeed exhaust, mk4 exhaust manifold and TT race DP.
Software used: 270 cam profile chip
Experienced issues: No real "problems" stalled 1 time in really cold weather, but I was told by BFI it takes 60 seconds for the chip to kick in (?). My wife dd'd this car for about 6 months before I got her a new GTI. This car was an auto, for the record.

[macanic21]

1996 jetta 5spd Stg 2 chip
276 cam w/adjustable gear
long tube header, 2.5" open pipe
ported head shaved .020
biggest valves tt sells
stock aba intake manifold
engine is brand new rebuild
MAF, TB, FPR, O2 sensor all brand new
checked for vac leakes everywhere
cleaned injectors with carb cleaner while actuating them with 12v

Stock chip runs without issue.
C2 chip - idle hangs/flutters, car bucks at low RPM driving in town. Car smells rich and produces bank 1 rich code

I am going to swap in a 97 ECU which had the PCV fix thing and see if the car runs better.

[GloryFreak]

Model year: 1996 VW Golf 2.0 5 spd
Engine mods: Stock head/block, Auto 260* Cam, MSD Blaster Coil, 2.5" Autotech Cat-back, 2.5" Magnaflow Hi-flow cat, Pacesetter header, PCV reroute, deramped tb, BFI stg .5 engine, tranny mounts
Software used: BFI stage 2
Experienced issues: Rev hang (worst times on cold start and overall cold weather). Isn't as bad when car is fully warmed up or warmer weather. Car use to stall out whenever it rained but after I changed the coil, the car stopped stalling out (Car ALMOST stalls out during cold starts but hasn't since the new coil install). Car has system too rich code. Bad fuel economy. No power unless I unplug the battery for about an hour then re-adapt tb. After this, power is back and rev hang issue/fuel problem is gone. Problem returns about 2-3 days later or around driving 80 miles.

[GloryFreak]

Yes, I'm on the original tune. Have the rev hang / fuel issue. 2nd revision had bad rom + other 2 issues as well

[retoropak]

1996 cabrio
270 autotech cam
Autotech 2.5 exhaust no cat
Pem stg 2
All issues stated above: hanging revs, bad idle, running rich , stalling etc.

[bluntman220]

Yes, I'm on the original tune. Have the rev hang / fuel issue. 2nd revision had bad rom + other 2 issues as well

same waiting on rev 3 now

[The Big V]

BUMP...the more people to take a min to do this poll the more/better info and support we gain

[brianalexander]

97 golf

270 cam, ported odb1 head, obx header, mk4 manifold. rev hangs more prevalent w/ the AC on (2k RPM hang) no CEL. talking to them about getting the later rev chip.

[Hurt]

1998 Jetta GT 2.0

276* TT cam set to +4 advance
3 angle valve job OBD1 head with LW lifters and HD valve springs
decked/Milled 040"
90mm HG (+0.5 compression)
TT non-aluminum cam gear
USRT SRI manifold
MK4 exhaust manifold w/ TT race DP
2.5" Custom Mandrel Bent exhaust w/ 2 Magnaflow mufflers and a 20" resonator.
MSD ignition set up w/ 8.5mm wires
Battery moved to the trunk
H&R Ultra Low's 21" ftg front, 21.5" ftg rear
195/50/R15 15x7" Phone Dials.
BBM 6 speed 02A with a peloquin LSD.
25mm front sway bar
28 rear sway bar
front and rear tie bars
C2 Race file chip.
etc..]


Issues. Bucking at around 2k rpm. Bad idle, stalls.. Smells very rich. Bad MPG (from 25 with my TT chip to 20!!) Faster, than the TT chip, but.. well, not worth the issues.

Update:
After 2 weeks, it's fine. Ran good, good power, no idle issues.

[BoutBizness]

Great info on this thread, love it

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