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Post History: Austin DeHaas
You are correct. Nothing in the data shows that it is a Fitech issue. If it were fuel pressure, it …In: random stall with easy restart
3 days ago
Reread my ground recommendation. However, not seeing in any codes that would lead me to believe you …In: random stall with easy restart
3 days ago
My suggested grounding method. Battery ground should go directly to engine block. Frame and Body g …In: random stall with easy restart
6 days ago
Learn to catalog and retrieve. There are videos on Fitech.com.
Get a 2 minute log at idle and up …In: random stall with easy restart
7 days ago
Your Learn is maxed out positive and your Trim is still commanding even more fuel. You either have …In: Stalls during hard acceleration
1 month ago
Just let it learn from there.
As for what Fitech told you, they were correct. It is impossible t …In: 30065 on 6-71 tuning help!
2 months ago
Interference in the tach signal wire usually goes full or high rpm, not low or no rpm. That is why …In: 30065 on 6-71 tuning help!
2 months ago
The Fitech cannot create its own interference. Yes, your engine is cutting out, however the rpm is …In: 30065 on 6-71 tuning help!
2 months ago
All sounds correct. And yes, PWM was removed in the newer relay box ECU that you have.
There are …In: 30065 on 6-71 tuning help!
2 months ago
I looked at the log. It looks like a fuel supply issue, however you say the fuel pressure never dro …In: 30065 on 6-71 tuning help!
2 months ago
I would say fuel as well. However send the data log to austin@fitechefituning.comIn: 30065 on 6-71 tuning help!
2 months ago
Unfortunately that system will not work with a multi port v6. At this time Fitech doesn’t have a mu …In: 38351 TPI Standalone EFI System
2 months ago
I already told you this isn't a complaint website. I have very little patience with immaturity …In: All Polished Up
10 months ago
Quote from bsagreg on March 22, 2025, 3:46 pm
I made it 2 months trying to get the G EFI 2x4 system …In: Fitech = total disappointment
10 months ago
Quote from SodaPop on April 22, 2024, 8:23 pm
Quote from Austin DeHaas on April 22, 2024, 9:44 am …In: Fitech = total disappointment
10 months ago
Happens from time to time, especially if using the factory sensor. If you do decide to change senso …In: TPI Idle issue
1 year ago
That looks better. AFR is near the target now.
Look for Dual/Single O2 settings videos.
Your …In: TPI Idle issue
1 year ago
In this log, your coolant never gets over 170. This can cause issues, but not for this symptom.
…In: TPI Idle issue
1 year ago
Run ECU programmer in the handheld with key on. This will flash the ECU with the proper software.In: No Tach/RPM, fires wont run
1 year ago
Loop rate up and down won't affect the idle stability. I would suggest putting those defaults …In: TPI Idle issue
1 year ago
Real simple.
Go to "Write Cal to ECU"
I assume you have a V8. Choose the Default V8 …In: Resetting unit!
1 year ago
Wrong software. Yours should have 30001 or 30002. Same units, different color.In: Should Calibration files names match model?
1 year ago
Any codes? What does the RPM on the handheld say when it is pouring fuel
Take the pump fuse out to …In: Computer broke
1 year ago
Insulator not necessary. Do you show data on handheld dashboard with key on? When did you buy this …In: Injection unit not functioning.
2 years ago
If handheld is coming, but not communicating.
1. ECU must be on.
2. Unplug handheld cable fr …In: Help
2 years ago
Please send all opinions or experiences with Fitech tech support to Fitech directly. This site was …In: Fitech = total disappointment
2 years ago
Quote from tac71 on April 19, 2024, 9:51 am
My system is a 30003, 4bbl, 400hp
My handheld is a g …In: Fitech = total disappointment
2 years ago
I can't answer too your interaction with the other techs. I do know in the 8 years I have been …In: Fitech = total disappointment
2 years ago
Ok, I am the creator and owner of this website. I started this site as a User like yourself. I now …In: Fitech = total disappointment
2 years ago
Where do you have your alternator switched wire hooked up?
Usually why an engine will keep runnin …In: Won't shut off
2 years ago
Go into the dashboard and scroll to Battery line. If voltage drops below 10.5v while cranking, the …In: Current Version of Software
2 years ago
With fuel mileage it is a combination of 2 things. Cruise or light throttle AFR and timing advance. …In: Really poor fuel mileage
2 years ago
Let me make sure I understand. When the engine is cranking the coil fires, but doesn't go to t …In: Ultimate TPI 358351 no spark from distributor (solved)
2 years ago
The Fitech harness plugs into the factory small cap hei module on the distributor.In: Ultimate TPI 358351 no spark from distributor (solved)
2 years ago
No, it's not the ECU. The ECU cannot create its own electrical interference.
This will be a …In: Fuel injectors dumping fuel/ no start
2 years ago
Interesting issue. Never seen this. Seems you have done a great job of testing.
The low voltage …In: ECU Drops out when 02 sensors connected
2 years ago
2 years ago
Make sure there is nothing inside log_file. No files, no folders.
After recording a datalog, shut …In: No data log
3 years ago
Superchargers can be fun!!!!
I looked at your logs. I haven't seen data that looks like any …In: Acceptable fuel pressure range?
3 years ago
Make sure nothing is grounded to the engine, except the battery. No frame to engine or firewall to …In: Acceptable fuel pressure range?
3 years ago
Your log is showing fault code 36. That rpm noise/electrical interference.In: Acceptable fuel pressure range?
3 years ago
3 things to tune
Raise the DFCO decel fuel cut off enable temp to 300. Effectively disables that …In: stalls after highway cruising - Easy Street 600 HP 30005
3 years ago
The 1200 unit is designed to run on 58psi. The on board regulator is a 4 bar / 58psi regulator. At …In: Acceptable fuel pressure range?
3 years ago
Did you run ecu programmer when you loaded new software to handheld. Both the handheld and the unit …In: 30003 Kit IAC Not Adjustable after Firmware Update
3 years ago