ERIC
Well-Known Member
- Joined
- July 2, 1999
- Messages
- 198
- Reaction score
- 0
- City, State
- Wilmington, NC
- Year, Model & Trim Level
- '96 XLT
I'm still agonizing over buying a Superchips for my '96 4.0L what with yet another rise in gas prices and the apparent need to go to premium fuel. But while I'm mulling this over, I gotta coupla questions.
First, any idea why Smartyparts wants the four letter code off my ECU in order to sell me a Superchips...but Carparts doesn't ask for it? I've sent a post to Smartyparts asking them, but i probably won't get a reply till Monday late now.
Second, where is the ECU? I know it's in the area of the passenger side kick panel...do i need to unbolt the panel and remove it to access the ECU?
Finally, will I get any better gas mileage with a Superchips and premium fuel? I figure i'd need about 7% increase in mileage (about 1.5 MPG) to break even over the super-regular i use now (89.5 octane.)
First, any idea why Smartyparts wants the four letter code off my ECU in order to sell me a Superchips...but Carparts doesn't ask for it? I've sent a post to Smartyparts asking them, but i probably won't get a reply till Monday late now.
Second, where is the ECU? I know it's in the area of the passenger side kick panel...do i need to unbolt the panel and remove it to access the ECU?
Finally, will I get any better gas mileage with a Superchips and premium fuel? I figure i'd need about 7% increase in mileage (about 1.5 MPG) to break even over the super-regular i use now (89.5 octane.)