2004 Viper Pre-ignition and 187 falt codes
#1
04-15-2011, 06:47 PM
Join Date: Apr 2011
Location: Las Vegas NV
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2004 Viper Pre-ignition and 187 falt codes
Hello, Im new to this forum, I own a 2004 Viper that has been plagued with many problems over the years.
I'm on my 3rd set of cats and the the engine has always suffered form pre- ignition and cylinder detonation since day 1. Obviously the cause of the cat failure. Dodge fails to address the cause and only addresses the symptom.
My Snap On Modis Scanner (7.02 operating system) is now showing a 187 falt code on 3 cylinders. I believe a 187 is a OBD1 "Fuel Pulse With" issue.
Further more, I took the car over to D & C performance to get another perspective. The end result was Multible dyno pulls with 500HP at the wheel and....are you ready.... "Pre-ignition & Detonation. TOTAL TIMMIMG WAS @ 35 degrees. Fuel mixture was good through out the power band.
They suggested extending the fan run time and lowering the Thermostat Temperature to bring the cylinder temp. down.
Dodge said they would not change out the Thermostat and... Did not posses the ability to change the fan settings. But, they cant seem to fix the problem!!!
I'm like ----->
The warranty runs out in 1 month. Dodge is all----->
I'm on my 3rd set of cats and the the engine has always suffered form pre- ignition and cylinder detonation since day 1. Obviously the cause of the cat failure. Dodge fails to address the cause and only addresses the symptom.
My Snap On Modis Scanner (7.02 operating system) is now showing a 187 falt code on 3 cylinders. I believe a 187 is a OBD1 "Fuel Pulse With" issue.
Further more, I took the car over to D & C performance to get another perspective. The end result was Multible dyno pulls with 500HP at the wheel and....are you ready.... "Pre-ignition & Detonation. TOTAL TIMMIMG WAS @ 35 degrees. Fuel mixture was good through out the power band.
They suggested extending the fan run time and lowering the Thermostat Temperature to bring the cylinder temp. down.
Dodge said they would not change out the Thermostat and... Did not posses the ability to change the fan settings. But, they cant seem to fix the problem!!!
I'm like ----->
The warranty runs out in 1 month. Dodge is all----->
#2
04-15-2011, 08:09 PM
#3
04-17-2011, 02:23 PM
Join Date: Dec 2003
Location: Alamosa, Colorado (200 yards from the Rio Grande)
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