FYI on deletes, he got mine right with the secondary O2 "trick" and also deleted SAI successfully. My readiness appears to work properly, where it takes a little time to set as Ready. This passed California OBDII inspection.
Here is a chronological summary of my Motoza experience:
12/30/13: Ordered Motoza Hybrid K04 tune
1/6/14: Motoza kit arrived. Performed initial ECU read and sent off file to Motoza to await base file.
1/10/14: sent Motoza follow-up email about awaiting base file. Motoza responded same-day saying they would get to it later that day or next morning.
1/13/14: sent Motoza another follow-up email waiting for
base file. Got it [Rev 1] later that day.
1/14/14: I installed 550cc injectors, flashed base file, drove around for it to adapt, took a log, and
emailed the log.
1/16/14: sent email to Motoza about my CEL turning on. (Later discovered my secondary O2 sensor was bad)
1/16/14: Motoza told me they incorrectly set my base file for 3" MAF (I was running stock MAF), and
sent me a new base file [Rev 2] for stock MAF.
3/21/14: During this gap of time I fixed boost leaks, replaced secondary O2 sensor, etc.
Took a log and sent it to Motoza on this day.
4/3/14:
Received Rev. 3 of my tune. This should have fixed some large fuel trims I was seeing and other improvements.
4/16/14: I
took a log and sent it to Motoza. My instrument cluster MPG readout had been way off since base file, hoping it would be fixed in next rev.
4/22/14:
Motoza sent Rev. 4, with MPG readout fixed as I requested, as well as other tweaks.
Some various communication went on, and I ended up replacing my F4H kit with an F21 kit to hopefully resolve some "problems" I thought I was having. Nothing really changed though... one of the problems was rattling that I thought was from the manifold-to-turbo connection, but turned out to be intermittent contact between my downpipe and AWE DTS bar.
7/10/14: I
took a log and sent it to Motoza. My main "complaint" was my feeling of rough partial-throttle driveability in 1st gear, especially with AC turned on.
7/30/14:
Took another log and sent it as a follow-up email
after not hearing from Motoza for 20 days.
8/1/14: Heard back from Motoza, and some short back-and-forth communication about overboost that I had fixed on my car (wastegate lines).
8/6/14:
Motoza sent Rev. 5. Said that he would be happy if it weren't for the 1st gear "hiccup" (as I described it) based on logs.
Some time passed. I bought a MKIV VR6 / TT225 3" MAF housing from Doug @ FrankenTurbo, and installed it and flashed my original incorrectly-set base file. 1st gear driveability improved a little bit, but the tune was a little rough since it was an un-tweaked base file. MPG readout was way off, and I think fuel trims were off a bit too.
12/19/14: emailed Motoza more info about my driveability issues, inquiring about starting over fresh with 3" MAF (and maybe paying a $100 hardware change fee).
1/9/15:
3 weeks with no response, called Motoza and spoke for 30mins with them. Discussed some tuning logic and whatnot, and determined to try car with stock tune and injectors (to determine if Motoza tune or hardware was culprit for driveability issues).
1/13/15: I
emailed Motoza and cc'd their Sales email. Basically with stock tune/injectors (no other hardware changes) I DON'T have the driveability issue, suggesting to me Motoza tune might be the culprit.
1/29/15:
called Motoza during open business hours (2pm their time) to follow-up to email sent on 1/13/15. Call went to answer machine and I left a message. Also
sent a follow-up email and copied the Support @ motozaperformance.com email address. Motoza
responded a couple hours later by email, saying he was at the dyno that day and would look into it the next morning (1/30).
2/5/15:
Have not heard from Motoza yet, and since he suggested he would be looking into it on 1/30, I
sent another follow-up email.
2/5/15:
Received a prompt reply from Dave's coordinator, saying he is looking into it and would send an update later in the day
2/5/15:
Received Rev 6 (still for stock MAF housing) from Dave a few hours later. Flashed it later in the day.
4/29/15:
Inquired to Motoza about upgrading to E85 switchable tune, along with 3" MAF housing and upgraded injectors. Would also upgrade my 91 octane tune to the new hardware.
4/30/15:
Heard back from Dave's coordinator, and had
several emails back-and-forth. Dave's suggestion is Bosch EV14 750cc injectors.
5/1/15:
Paid Motoza $297 for 1) BTX bluetooth interface ; 2) 91 octane tune upgrade (3" MAF, 750cc injectors) ; 3) E85 switchable tune. They
suggested 1 week turnaround time on new base tunes [would be 5/8/15].
5/4/15: Received BTX interface in the mail. Very fast shipping.
5/7/15: Inquired to Motoza about when I might expect to receive base tunes.
5/8/15: Dave's coordinator said new base files should be ready by 5/11/15.
5/12/15: Dave's coordinator said new base files should be ready by end of day 5/12/15.
5/12/15:
Received new tune [Rev 7] that has tune switching! Changes should be 3" MAF housing, 750cc injectors, and E85 with tune switching.
5/18/15:
Emailed Motoza about bad fuel trims and apparent wrong MAF scaling.
5/18/15:
Received a prompt response from Dave's coordinator with
updated/corrected tune file [Rev 8], probably for proper MAF scaling.
5/28/15:
Sent log of Rev 8 after switching to E85. Received prompt response from Dave and his coordinator. Reported large fuel trims (-16%). Reported no-start on first crank (cold-start).
6/1/15: Some various communication occurred.
6/3/15:
Received Rev 9. Fixed the big fuel trims, added a little timing and high-RPM boost.
7/11/15:
Fixed an exhaust leak between turbo/manifold on my car. This appears to have fixed much of the "part-throttle driveability" issues I had.
7/20/15: Verified exhaust leak fix. Logged the car and
sent log of Rev 9. Inquired about fixing cold starting issue and consumption signal.
7/21/15:
Received response from Dave about fixing cold start issue and consumption signal. Says he will get to the logs, but didn't offer an ETA.
7/30/15: Sent followup email. Received prompt response from Dave's coordinator. Later in day
received Rev 10.
8/3/15: Sent logs of Rev 10, and additional info. Cold startup still has same issue, consumption signal not fixed. More timing/boost added.
8/3/15: Received response from Dave, says he'll get out a quick fix on Thursday for cold start issue, but not get to anything else.
8/6/15: Received
Rev 10x, which is modified to have more fuel at startup to try to fix cold start issues.
8/10/15:
Sent log of Rev 10x not starting on first cold start attempt. Received a rapid acknowledgement from Dave's coordinator.
8/27/15: Received
Rev 10xx, another attempt at fixing cold-start issues.
9/4/15: Motoza sent a follow-up email to see how Rev 10xx was working out. I
sent a log of cold startup, as Rev 10xx didn't yet fix cold start.
9/10/15: I swapped in BKR6E plugs @ 0.032" gap to replace 1,000-mile-old BKR7E @ 0.037" gap to see if a hotter plug/tighter gap would improve cold startup. It didn't, but throttle response seemed slightly improved.
9/11/15: Received
Rev 10xxx, another attempt at fixing cold start. Still not there yet.
9/14/15: Sent out log of Rev 10xxx cold start. It almost starts on first, so getting closer. Received a prompt response from Dave's coordinator about being put on the schedule.
9/23/15: Sent follow-up email, with new information that I fixed several minor boost leaks with no changes. Received response from Dave within 2.5 hours about his plan-of-attack for continuing to try and improve cold starting.
9/29/15: Received
Rev 11. Fixed cold start; now it always starts on first try.
10/16/15: Sent response on cold start being fixed. Inquired about resuming performance improvements [from log of Rev 10] and fixing fuel consumption signal.
10/19/15: Received response from Dave's coordinator that I was put on the schedule.
10/23/15: Received
Rev 12. Supposed to be a little more top end performance and mostly-fixed fuel consumption signal.
1/11/16: Sent email containing log of
Rev 12. Experiencing semi-poor running shortly after cold start for ~ 60 seconds, on E85 in slightly cooler weather. Inquired about taking advantage of recently-installed connecting rods, and switching to 3 bar MAP sensor.
1/15/16: Received a response, probably from Dave [seems they don't have a coordinator now]. Described the known E85 warm-up enrichment issue they've been working on, said they would look at the log. Said there would be an upgrade fee for implementing 3bar MAP sensor.
2/2/16: Sent a follow-up after not hearing anything for 2.5 weeks. During my normal morning commute 1-2mins. after cold start, engine died/stalled while clutch was in and I was making a turn. This is the E85 warm-up issue at work that Motoza said they would work on.
2/3/16: Received a response saying they would hopefully have the next revision out today, along with an invoice for 3bar MAP sensor upgrade.
2/6/16: Received
Rev 13. This seems to have fixed the warm-up issues on E85 after a cold start, however the car no longer starts on first crank attempt when the engine is cold (like pre-Rev 11).
2/11/16: Received
Rev 14. Fixed issue with Rev 13, by bringing fueling during cranking back to Rev 11 level.
2/11/16: Sent email acknowledging receipt of Rev 14,
inquired again about 3bar MAP sensor upgrade.
4/20/16: Sent another email inquiring about 3bar MAP sensor + upgraded FMIC (TR18T) tune upgrade.
4/21/16: Received PayPal invoice for 3bar MAP sensor upgrade tune, and paid promptly.
4/22/16: Was told I was "on the schedule" for 4/29 to have the tune worked on.
5/3/16: Sent email inquiring about status of tune upgrade.
5/5/16:Received email suggesting new tune upgrade should be ready by end of day or following day at the latest.
5/11/16: Sent another follow-up email. Received response later in the day saying it should be ready by the next morning.
5/12/16:
Received 3bar-Rev 1 in early afternoon.
5/30/16: Took a log and sent it out.
6/1/16: Received a response that I would be on the schedule for 6/2/16 morning.
6/17/16: Sent follow-up with a question, and requested when next revision might be ready.
6/23/16: Received response with answer to a question, and said next revision should be ready on 6/24.
6/24/16: Sent response mid-day encouraging completion of next revision, but no luck.
6/27/16:
Received 3bar-Rev 2 at end of day.
8/14/16: Logged 3bar-Rev 2, and sent log.
8/15/16: Received response from Motoza's coordinator saying I am outside of the "
30 day retuning window for the upgrade that was purchased" and will have to pay for an additional $99 fee for them to even look at a log!
8/15/16: I responded promptly, saying that I waited a combined 49 days for last 2 revisions... so their statement is unfair and shouldn't apply to me.
8/18/16: Motoza responded, saying that would take care of this next revision. Also said they are having to put a time cap on tuning to prevent customer projects from dragging on too long.
8/22/16:
Received 3bar-Rev 3. Increased mid-range boost, refined fueling. This could be the last revision.
9/1/16: Logged 3bar-Rev 3, and sent log. (would have logged sooner, but battling a coolant leak)
9/6/16: Received response from coordinator that I'm on the schedule for 9/9/16.
9/8/16: Received response from Motoza, saying log looked great. He also asked how far I want to push the car. We decided to give it more boost in the mid-range, since he feels it is already fairly tapped-out in the upper end.
9/9/16:
Received 3bar-Rev 4. Increased mid-range boost.
9/19/16: Logged 3bar-Rev 4, and sent log. (would have logged sooner, but finally was able to fix the coolant leak)
9/22/16: Received response from coordinator that I'm on the schedule.
9/26/16: Sent brief response (hoping it would prompt Motoza that they had put me on the schedule).
9/28/16:
Received 3bar-Rev 5, supposedly a tad more boost. They also suggested it could be a good time to put the car on a dyno.
9/30/16: Took the car to AU Tuning in Huntington Beach, CA to do some pulls on their DynaPack Dyno.
Click here for dyno results [309 lbft and 277 hp @ the wheels].
1/11/17: Sent inquiry to Motoza about short 2.0T coil pack life (did they ever adjust my tune for 2.0T coil packs?). Also inquired about engine struggling/stalling at idle on cold starts with E85.
2/2/17: Followed up on 1/11 email, and received a response that day saying they would make the change to adjust coil dwell time.
2/8/17:
Received 3bar-Rev 6, which has reduced coil dwell time, to hopefully prolong 2.0T coil life.
Once Motoza hired a coordinator around late Jan. 2015, email communication improved IMMENSELY. Also in 2016 they set up an online portal for uploading logs & downloading revisions that seems to work pretty well. When you upload a file it triggers an alert, and that's how they know to begin working on your next revision.
My summary at this point: Dave seems to be a good tuner, but tends to be quite busy and early-on in the tuning process overlooked major things in my hardware sheet multiple times (initial hardware setup and for hardware change).
One thing to keep in mind, is that in 2016 Motoza began implementing a time limit on tuning. Basically you have a limited time frame to get in logs for them to be reviewed. This is to prevent projects from dragging on too long, which I'm sure makes their work more difficult/annoying/time-intensive.
Overall I'm pretty satisfied with Motoza, or at least I can't really imagine using another tuner.
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