2011 Honda Pilot EX
Purchased with 80,000 miles on it- Private Party
Ran great for the first 3,000 miles. Currently has 83,253 miles
Problem description;
When driving between 20 – 55 mph engine shuts off and looses electrical to instrument panel for a split second and then power / instrument lights come back on. Place it in Neutral, turn key back one click and then restarts.
Happened the first time while driving for approximately 1 hour. Going up a slight incline at 45mph.
After this drove it two different days for 2 hours each time and it was fine. Then it started doing it every time I drive. It happens sporadically.... 10, 20, 30 minute intervals between occurrences.
I live in a hilly area and with some rough roads.
Regular Maintenance performed since I purchased and before the problem started.
9/18/19 New Battery. Previous battery was 3 years old and died after kids left interior lights on repeatedly.
10/12/19 New spark plugs ( Honda OEM )
10/12/19 Transmission 3.4 qt drain and fill ( Honda ATF-DW-1)
10/16/19 oil and filter change ( Amsoil 0w20) & Wix oil filter 57356xp
* 10/17/19 * first shut off occurrence, with the following codes.
CODES-
No transmission codes.
Engine codes;
P062F- Internal control module EEPROM error.
P060A- Internal Control Module monitoring processor performance.
P2610- ECM/PCM internal engine off timer performance.
U0029 – Vehicle communication Bus A performance.
U0155- Lost communication with instrument panel cluster (ipc) control module.
P2118- Throttle actuator control motor current range / performance
Flashing D on the Gear selection instrument panel blinks 5 times ( Transmission is smooth, no vibrations, no hard shifting)
NO green blinking key on instrument panel
Before taking to Mechanic I have tried the following things.
Local Honda certified mechanic- ( not Honda dealership)
Determined that it needed a new PCM/ECM ( computer). He called a friend and Mechanic at Honda who also agreed that it was the computer. Honda said that those codes render the computer useless and cannot be rebuilt. So $900 for a new one.
The New computer was programmed for my Pilot and – SAME problem persists. Awesome mechanic says he will not charge me for the computer, since that is not the problem.
Currently he is looking for electrical / wiring problems.
Honda tells him, bring it to the Honda stealership and let them play with it.
PROBLEM SOLVED -
Honda dealership had gaped 5 of the 6 spark plugs incorrectly.
New mechanic (not Honda) took it for a drive and figured it was a spark issue, since it was stalling under load when switching from 6 to 3/4 cylinder mode.
The improper gap ruined the plugs.
Replaced the 6 spark plugs with new ones and gaped them correctly.
Have now driven 6,000 miles with no problems.
Hope that helps -
Purchased with 80,000 miles on it- Private Party
Ran great for the first 3,000 miles. Currently has 83,253 miles
Problem description;
When driving between 20 – 55 mph engine shuts off and looses electrical to instrument panel for a split second and then power / instrument lights come back on. Place it in Neutral, turn key back one click and then restarts.
Happened the first time while driving for approximately 1 hour. Going up a slight incline at 45mph.
After this drove it two different days for 2 hours each time and it was fine. Then it started doing it every time I drive. It happens sporadically.... 10, 20, 30 minute intervals between occurrences.
I live in a hilly area and with some rough roads.
Regular Maintenance performed since I purchased and before the problem started.
9/18/19 New Battery. Previous battery was 3 years old and died after kids left interior lights on repeatedly.
10/12/19 New spark plugs ( Honda OEM )
10/12/19 Transmission 3.4 qt drain and fill ( Honda ATF-DW-1)
10/16/19 oil and filter change ( Amsoil 0w20) & Wix oil filter 57356xp
* 10/17/19 * first shut off occurrence, with the following codes.
CODES-
No transmission codes.
Engine codes;
P062F- Internal control module EEPROM error.
P060A- Internal Control Module monitoring processor performance.
P2610- ECM/PCM internal engine off timer performance.
U0029 – Vehicle communication Bus A performance.
U0155- Lost communication with instrument panel cluster (ipc) control module.
P2118- Throttle actuator control motor current range / performance
Flashing D on the Gear selection instrument panel blinks 5 times ( Transmission is smooth, no vibrations, no hard shifting)
NO green blinking key on instrument panel
Before taking to Mechanic I have tried the following things.
- Cleaned battery terminals.
- Checked wiring grounds to vehicle. ( 3 locations)
- Checked battery voltage. (12.75 engine off.)
- Tested all relays for resistance, function and draw with a multi meter, jumper wires and draw light. All relays tested good.
- Checked all fuses. ( good)
Local Honda certified mechanic- ( not Honda dealership)
Determined that it needed a new PCM/ECM ( computer). He called a friend and Mechanic at Honda who also agreed that it was the computer. Honda said that those codes render the computer useless and cannot be rebuilt. So $900 for a new one.
The New computer was programmed for my Pilot and – SAME problem persists. Awesome mechanic says he will not charge me for the computer, since that is not the problem.
Currently he is looking for electrical / wiring problems.
Honda tells him, bring it to the Honda stealership and let them play with it.
PROBLEM SOLVED -
Honda dealership had gaped 5 of the 6 spark plugs incorrectly.
New mechanic (not Honda) took it for a drive and figured it was a spark issue, since it was stalling under load when switching from 6 to 3/4 cylinder mode.
The improper gap ruined the plugs.
Replaced the 6 spark plugs with new ones and gaped them correctly.
Have now driven 6,000 miles with no problems.
Hope that helps -