Desprate Measures
In regards to your 'chip'... get ANY chip out of the system ASAP. PCMs are expensive, damageable and smart. ANY chip (a $1 chip, a $20 chip or a $100 Jet Chip) will only change settings for a short while. Dodge did a wonderful job programing our PCMs to continually adjust and pull any Durango back into specifications as the sensors start to age and give different readings. Over time (about 100 starts) the PCM will re-learn and re-adjust rendering any chip useless in short order. It simply adjusts everything until it gets the readings it wants to see as a standard baseline within standard deviations. Any chip in the system is only running the risk of electrical damage to the PCM. From there, you have an expensive repair bill.
IndyDurango
Hypertech and Superchips sells tuners/programmers for the 5.9. Both are great products.
Last edited by Kensai; Aug 10, 2009 at 04:05 PM.
Thread Starter
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Rookie
Joined: Apr 2007
Posts: 67
Likes: 0
From: Miami, FL
Sorry i ditched on the conversation over the weekend. I was out and away all weekend long. Which is probably a good thing.
So, I messed up?!?!
I can return the chip, they have a $$ back policy. I'm stuck with the spacer.
I thought that the whole concept behind the spacer was to change the way the air flowes into the engine and improve performance. No true?
So, I messed up?!?!
I can return the chip, they have a $$ back policy. I'm stuck with the spacer.
I thought that the whole concept behind the spacer was to change the way the air flowes into the engine and improve performance. No true?
Hall Of Fame
Joined: Jun 2005
Posts: 14,228
Likes: 19
From: Riverton, UT
No truth there. These motors are Fuel Injected not carborated.
Carborated engines mix fuel and air. The spacer does 2 things on carborated motors.
1. Helps reduce heat on the carborator and that keeps fuel colder.
2. Gives the fuel a better atomization with air by giving it a different type routing and more time to blend.
In fuel injected engines there is no atomization in the carborator because there isn't one. There is a Throttle Body that regulates air and then there is fuel sprayed into the intake manifold right before the valve. The fuel injector mists the fuel to atomize with the incoming air. Therefore spacers do not do any of the 2.
It does make a nice paper weight!
Carborated engines mix fuel and air. The spacer does 2 things on carborated motors.
1. Helps reduce heat on the carborator and that keeps fuel colder.
2. Gives the fuel a better atomization with air by giving it a different type routing and more time to blend.
In fuel injected engines there is no atomization in the carborator because there isn't one. There is a Throttle Body that regulates air and then there is fuel sprayed into the intake manifold right before the valve. The fuel injector mists the fuel to atomize with the incoming air. Therefore spacers do not do any of the 2.
It does make a nice paper weight!
Thread Starter
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Rookie
Joined: Apr 2007
Posts: 67
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From: Miami, FL
Just wanted to give you all an update. I've gone through half a tank with the chip and the throtle body spacer.
I'm burning more fuel, 1 gpm more than with out the stuff.
Tomorrow I'm removing the spacer but leaving the chip through the rest of the gas tank to see how it does.
Later.
I'm burning more fuel, 1 gpm more than with out the stuff.
Tomorrow I'm removing the spacer but leaving the chip through the rest of the gas tank to see how it does.
Later.
Champion
Joined: Jun 2006
Posts: 4,822
Likes: 4
From: Indiana
99 PCMs are sensitive and suspect to failure. I would get that chip out of the system as soon as possible.
If you are concerned over 1MPG, thinking about the miles you could get out of an extra $500. Why $500? Well a new PCM replacement is about $500 PLUS labor. That may shed some light on the seriousness of the issue. Just because they sell them, doesn't mean we should use them.
Sorry.
IndyDurango
If you are concerned over 1MPG, thinking about the miles you could get out of an extra $500. Why $500? Well a new PCM replacement is about $500 PLUS labor. That may shed some light on the seriousness of the issue. Just because they sell them, doesn't mean we should use them.
Sorry.
IndyDurango
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Rookie
Joined: Apr 2007
Posts: 67
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From: Miami, FL
Pardon the ignorance. What is the PMS??? I mean, what is is on a car??!!
I connected the chip to the air temp sensor, as required by the manuf.
Today I made an ram air out of the OEM air scoop that connects to the side panel. I inverted the scoop and cut the section with a roto zip. The section that faces front of the car looks like a shovle. I'll post pics later this weekend.
talk later
I connected the chip to the air temp sensor, as required by the manuf.
Today I made an ram air out of the OEM air scoop that connects to the side panel. I inverted the scoop and cut the section with a roto zip. The section that faces front of the car looks like a shovle. I'll post pics later this weekend.
talk later
All Star
Joined: Jul 2008
Posts: 882
Likes: 3
From: Lebanon, IN
Pardon the ignorance. What is the PMS??? I mean, what is is on a car??!!
I connected the chip to the air temp sensor, as required by the manuf.
Today I made an ram air out of the OEM air scoop that connects to the side panel. I inverted the scoop and cut the section with a roto zip. The section that faces front of the car looks like a shovle. I'll post pics later this weekend.
talk later
I connected the chip to the air temp sensor, as required by the manuf.
Today I made an ram air out of the OEM air scoop that connects to the side panel. I inverted the scoop and cut the section with a roto zip. The section that faces front of the car looks like a shovle. I'll post pics later this weekend.
talk later
Power control module (PCM)
Last edited by schusterjo; Aug 14, 2009 at 07:38 PM.