How To Diagnose High Positive Long Term Fuel Trim: Test Bad MAF & Find Vacuum Leak With Smoke Test
11.9 هزار بار بازدید -
2 سال پیش
-
Links Below: Datalogging indicates high
Links Below: Datalogging indicates high Long Term Fuel Trim (LTFT) @ +15%. New Custom Tuner Shop hesitates making changes until all potential issues are ruled out. I show how to diagnose for vacuum leaks using a smoke tester on this puppy!
Additional Information: After cleaning the MAF on a ford ALWAYS do a KAM (Keep Alive Memory) reset to reset the ECM BARO calculation, then do 3 separate WOT (Wide Open Throttle) 30-60 MPH pulls to reset the BARO calculation & see How To Clear Ford Keep Alive Memory, ...
00:00 Introduction To High (LTFT) Long Term Fuel Trim
00:21 SCT X4 Datalog Results - +15% LTFT
00:37 Causes of High LTFT: Dirty Mass Airflow Sensor or Vacuum Leak
00:47 Using A Smoke Tester To Identify Vacuum Leaks
01:22 Previous Smoke Test Results Due To P0171 & P0174
01:34 EGR & IAT Vacuum Leak
02:08 Does A Cold Air Intake Cause High (LTFT) Long Term Fuel Trim
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Automotive Smoke Tester (different & better than my current model): https://amzn.to/3qZm9BE
Standard Motor Products EGV537T EGR Valve - https://amzn.to/37W7o6K
BlueDriver Bluetooth Pro OBDII Scan Tool - https://amzn.to/3lsVutO
A few of my tools:
NextLED Rechargeable Under-hood Light Bar: https://amzn.to/3yzBYSK
Ounic Large Heavy Duty Tool Bag: https://amzn.to/3MdnCw5
OBD Dongle Compatible With Ford Vehicles: https://amzn.to/3ZqgLqk
Hose Clamp Plier: https://amzn.to/3jJk479
CRAFTSMAN Multi-bit Ratcheting Screwdriver Set: https://amzn.to/3j4CoJC
Universal 7-12mm Brake Bleeder Wrench Kit: https://amzn.to/4882DGl
HORUSDY 6-Piece Impact Drill Socket Adapter Set: https://amzn.to/3eYore1
10th Gen Ford F150 Too Lean P0171 & P0174 5.4 & 4.6 2V Engines: Diagnosis & Corrective Actions: 10th Gen Ford F150 P0171 & P0174 5.4 ...
Fix P0171 & P0174 5.4 2V F150, F250 LD, Expedition, Excursion, Navigator: Spark Plug Damage: How To Fix P0171 & P0174 5.4 2V F150,...
Driving Intelligence @ FB: www.FaceBook.com/DrivingIntelligence
For 10th Generation F150; f150 de décima generación; 1997 F150; 1998 F150; 1999 F150; 2000 F150; 2001 F150; 2002 F150; 2003 F150; 2004 F150 Heritage; 2nd Gen Lightning; 1st Gen Harley Davidson F150; Triton 5.4; Triton 4.6; Ford 4.2 V6; Ford Modular Engine; F150 Standard Cab; F150 Supercab; F150 Supercrew; 2002 Lincoln Blackwood; 1998 Navigator; 1999 Navigator; 2000 Navigator; 2001 Navigator; 2002 Navigator; 1997 Expedition; 1998 Expedition; 1999 Expedition; 2000 Expedition; 2001 Expedition; 2002 Expedition; 4.2 L (256 CID) Essex V6; 4.6 L (281 CID) Triton V8; 5.4 L (330 CID) Triton V8; 1997 F250; 1998 F250; 1999 F250; 1997 Ford Lobo; 1998 Ford Lobo; 1999 Ford Lobo
I'm a paid advertiser for Amazon and use recommended products in my videos.
The demonstration and any content contained in this video is for informational purposes only. Driving Intelligence makes no warranty, express or implied, regarding the effectiveness or safety of the contents of this video. In no way should the contents of this video, including the tools used, be repeated or tried by anyone. Viewers should only seek the help of a trained professional located at a licensed auto repair shop for any fix, modification, alteration, or change to their vehicle. Driving Intelligence shall not be liable for any injury, damage, or loss to any person or property that may result from use of the tools, equipment, or content contained in this video. The links on this video to products are for informational purposes only and in no way are an endorsement of the safety or effectiveness of the particular product. Viewer agrees to release, waive, and discharge Driving Intelligence or anyone affiliated with Driving Intelligence from any and all liability, claims, demands, actions, and causes of action whatsoever arising out of or related to any loss, damage, or injury, including death, that may be sustained by the viewer, or to any property belonging to viewer, regardless of whether the loss is linked to the use of the contents of this video, or otherwise and regardless of whether such liability arises in tort, contract, strict liability, or otherwise, to the fullest extent allowed by law.
Additional Information: After cleaning the MAF on a ford ALWAYS do a KAM (Keep Alive Memory) reset to reset the ECM BARO calculation, then do 3 separate WOT (Wide Open Throttle) 30-60 MPH pulls to reset the BARO calculation & see How To Clear Ford Keep Alive Memory, ...
00:00 Introduction To High (LTFT) Long Term Fuel Trim
00:21 SCT X4 Datalog Results - +15% LTFT
00:37 Causes of High LTFT: Dirty Mass Airflow Sensor or Vacuum Leak
00:47 Using A Smoke Tester To Identify Vacuum Leaks
01:22 Previous Smoke Test Results Due To P0171 & P0174
01:34 EGR & IAT Vacuum Leak
02:08 Does A Cold Air Intake Cause High (LTFT) Long Term Fuel Trim
smoke test f150; 2000 ford f150 smoke test; 2000 f150 smoke test; 2002 f150 smoke test; what is a smoke test on a vehicle; high ltft; how to fix high ltft; how to fix high long term fuel trim; what causes a high long term fuel trim; what would cause high long term fuel trim; what does high long term fuel trim mean; how to fix high long term fuel trim at idle; how to fix long term fuel trim; what does a high long term fuel trim mean; what causes high long term fuel trim; how to fix high long term fuel trim bank 1; how to fix high long term fuel trim bank 2; how to fix high ltft at idle; how to fix high ltft b1; how to fix high ltft b2; how to fix high ltft bank 1; high ltft causes; what causes high ltft at idle; what does high ltft mean; p0171 high ltft; high ltft acceleration; high positive ltft at idle; what does ltft mean; what causes high ltft; 2002 f150 P0174; 2002 f150 P0171
Automotive Smoke Tester (different & better than my current model): https://amzn.to/3qZm9BE
Standard Motor Products EGV537T EGR Valve - https://amzn.to/37W7o6K
BlueDriver Bluetooth Pro OBDII Scan Tool - https://amzn.to/3lsVutO
A few of my tools:
NextLED Rechargeable Under-hood Light Bar: https://amzn.to/3yzBYSK
Ounic Large Heavy Duty Tool Bag: https://amzn.to/3MdnCw5
OBD Dongle Compatible With Ford Vehicles: https://amzn.to/3ZqgLqk
Hose Clamp Plier: https://amzn.to/3jJk479
CRAFTSMAN Multi-bit Ratcheting Screwdriver Set: https://amzn.to/3j4CoJC
Universal 7-12mm Brake Bleeder Wrench Kit: https://amzn.to/4882DGl
HORUSDY 6-Piece Impact Drill Socket Adapter Set: https://amzn.to/3eYore1
10th Gen Ford F150 Too Lean P0171 & P0174 5.4 & 4.6 2V Engines: Diagnosis & Corrective Actions: 10th Gen Ford F150 P0171 & P0174 5.4 ...
Fix P0171 & P0174 5.4 2V F150, F250 LD, Expedition, Excursion, Navigator: Spark Plug Damage: How To Fix P0171 & P0174 5.4 2V F150,...
Driving Intelligence @ FB: www.FaceBook.com/DrivingIntelligence
For 10th Generation F150; f150 de décima generación; 1997 F150; 1998 F150; 1999 F150; 2000 F150; 2001 F150; 2002 F150; 2003 F150; 2004 F150 Heritage; 2nd Gen Lightning; 1st Gen Harley Davidson F150; Triton 5.4; Triton 4.6; Ford 4.2 V6; Ford Modular Engine; F150 Standard Cab; F150 Supercab; F150 Supercrew; 2002 Lincoln Blackwood; 1998 Navigator; 1999 Navigator; 2000 Navigator; 2001 Navigator; 2002 Navigator; 1997 Expedition; 1998 Expedition; 1999 Expedition; 2000 Expedition; 2001 Expedition; 2002 Expedition; 4.2 L (256 CID) Essex V6; 4.6 L (281 CID) Triton V8; 5.4 L (330 CID) Triton V8; 1997 F250; 1998 F250; 1999 F250; 1997 Ford Lobo; 1998 Ford Lobo; 1999 Ford Lobo
I'm a paid advertiser for Amazon and use recommended products in my videos.
The demonstration and any content contained in this video is for informational purposes only. Driving Intelligence makes no warranty, express or implied, regarding the effectiveness or safety of the contents of this video. In no way should the contents of this video, including the tools used, be repeated or tried by anyone. Viewers should only seek the help of a trained professional located at a licensed auto repair shop for any fix, modification, alteration, or change to their vehicle. Driving Intelligence shall not be liable for any injury, damage, or loss to any person or property that may result from use of the tools, equipment, or content contained in this video. The links on this video to products are for informational purposes only and in no way are an endorsement of the safety or effectiveness of the particular product. Viewer agrees to release, waive, and discharge Driving Intelligence or anyone affiliated with Driving Intelligence from any and all liability, claims, demands, actions, and causes of action whatsoever arising out of or related to any loss, damage, or injury, including death, that may be sustained by the viewer, or to any property belonging to viewer, regardless of whether the loss is linked to the use of the contents of this video, or otherwise and regardless of whether such liability arises in tort, contract, strict liability, or otherwise, to the fullest extent allowed by law.
2 سال پیش
در تاریخ 1401/08/19 منتشر شده
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