[DeTomaso] NPC - Troubleshooting OBDII "Lean Bank 2" Code
Doug
doug351c at gmail.com
Fri Jan 13 14:26:15 EST 2017
Hi Guys,
I'm asking "the collective" for ideas on where to go from here on a problem
with my 1998 Mustang Cobra.
About a year and a half ago, it started throwing a P0174 "Lean Bank 2"
Check Engine code and I've done the following in an attempt to fix it.
After each mod was made, it took about 180 miles of driving for the code to
reappear (since this code means the ECU hitting its max long term enrichment
limit).
The car otherwise drives fine, so once this limit is reached, it's still a
very enjoyable drive.
Doug Braun
Blue 73L #5505
DATE MILES REPAIR
Sep2014 87,000 Replaced IAC IAC (Idle Air Control) Valve - Autozone
Duralast TV228
Oct2014 88,000 Replaced Mass Airflow Sensor - Autozone/Cardone 74-9524
Jul2015 105,000 Replaced Throttle Position Sensor - O'Reilly - BWD
EC3025P
Jan2016 111,095 Replaced both Upstream O2 Sensors - RockAuto/NTK 22016
Feb2016 111,762 Replaced Intake Air Tract Temperature Sender (IAT
Sensor) - SMP
Replaced Coolant Temperature Sender (Sensor) -
SMP
Replaced Spark Plug Wires
Mar2016 111930 At this point, I took the car to a professional Garage.
They found a
bank 2 intake manifold leak and replaced the
Intake Manifold Gaskets
(manifold to runner + runner to head + upper
Intake).
Replaced the Plenum Seal.
Had Dr. Injector http://docinjector.com/ clean
& flow match the Fuel Injectors.
Apr2016 112,105 Replaced Fuel Pressure Regulator - Motorcraft
May2016 112,385 I bought one new coil pack and used it to temporarily
replace each original coil pack.
With the new pack in each location, the code
reappeared.
Dec2016 112,840 Replaced Fuel Pump Assembly - Airtex (sock filters,
wiring harness, case, flange & gasket)
-------------- next part --------------
Hi Guys,
I'm asking "the collective" for ideas on where to go from here on a
problem with my 1998 Mustang Cobra.
About a year and a half ago, it started throwing a P0174 "Lean Bank 2"
Check Engine code and I've done the following in an attempt to fix it.
After each mod was made, it took about 180 miles of driving for the
code to reappear (since this code means the ECU hitting its max long
term enrichment limit).
The car otherwise drives fine, so once this limit is reached, it's
still a very enjoyable drive.
Doug Braun
Blue 73L #5505
DATE MILES REPAIR
Sep2014 87,000 Replaced IAC IAC (Idle Air Control) Valve - Autozone
Duralast TV228
Oct2014 88,000 Replaced Mass Airflow Sensor - Autozone/Cardone
74-9524
Jul2015 105,000 Replaced Throttle Position Sensor - O'Reilly - BWD
EC3025P
Jan2016 111,095 Replaced both Upstream O2 Sensors - RockAuto/NTK
22016
Feb2016 111,762 Replaced Intake Air Tract Temperature Sender (IAT
Sensor) - SMP
Replaced Coolant Temperature Sender
(Sensor) - SMP
Replaced Spark Plug Wires
Mar2016 111930 At this point, I took the car to a professional
Garage. They found a
bank 2 intake manifold leak and replaced
the Intake Manifold Gaskets
(manifold to runner + runner to head +
upper Intake).
Replaced the Plenum Seal.
Had Dr. Injector
[1]http://docinjector.com/ clean & flow match the Fuel Injectors.
Apr2016 112,105 Replaced Fuel Pressure Regulator - Motorcraft
May2016 112,385 I bought one new coil pack and used it to
temporarily replace each original coil pack.
With the new pack in each location, the
code reappeared.
Dec2016 112,840 Replaced Fuel Pump Assembly - Airtex (sock filters,
wiring harness, case, flange & gasket)
References
1. http://docinjector.com/
More information about the DeTomaso
mailing list