Big MPG Improvement
Thread Starter
Rookie
Joined: Apr 2004
Posts: 86
Likes: 0
From: Florida
Big MPG Improvement
Since I rebuilt my ECU with new caps not only did overall driving performance improve
significantly but gas usage went from 17 to 22.8 MPG with A/C running. This is in town
driving.
The strong gas odor from exhaust disappeared and I noticed my idle speed at stop
is lower but very smooth...more like 500 RPM. Don't know whether the higher rated caps
that I used to replace the old ones could possibly make the car more efficient than when new
but I don't ever remember getting in-town MPG any better than 21
My car is a 1993 SC400 with 90K miles.
significantly but gas usage went from 17 to 22.8 MPG with A/C running. This is in town
driving.
The strong gas odor from exhaust disappeared and I noticed my idle speed at stop
is lower but very smooth...more like 500 RPM. Don't know whether the higher rated caps
that I used to replace the old ones could possibly make the car more efficient than when new
but I don't ever remember getting in-town MPG any better than 21
My car is a 1993 SC400 with 90K miles.
Thread Starter
Rookie
Joined: Apr 2004
Posts: 86
Likes: 0
From: Florida
Driver
Joined: Mar 2013
Posts: 110
Likes: 1
From: Fl
Since I rebuilt my ECU with new caps not only did overall driving performance improve
significantly but gas usage went from 17 to 22.8 MPG with A/C running. This is in town
driving.
The strong gas odor from exhaust disappeared and I noticed my idle speed at stop
is lower but very smooth...more like 500 RPM. Don't know whether the higher rated caps
that I used to replace the old ones could possibly make the car more efficient than when new
but I don't ever remember getting in-town MPG any better than 21
My car is a 1993 SC400 with 90K miles.
significantly but gas usage went from 17 to 22.8 MPG with A/C running. This is in town
driving.
The strong gas odor from exhaust disappeared and I noticed my idle speed at stop
is lower but very smooth...more like 500 RPM. Don't know whether the higher rated caps
that I used to replace the old ones could possibly make the car more efficient than when new
but I don't ever remember getting in-town MPG any better than 21
My car is a 1993 SC400 with 90K miles.
Thread Starter
Rookie
Joined: Apr 2004
Posts: 86
Likes: 0
From: Florida
slide ...read the posts in the "weird idling problems" thread and you will see the details of how i went about rebuilding my ecu. also, make sure u read cowboy's write up on this whole issue. the web address is in post 21.
cost....$10 for caps and $50 labor done by a tv service man who was a friend of mine. normal service charge would prob be triple.
Last edited by SC93; Aug 30, 2013 at 04:46 AM.
Thread Starter
Rookie
Joined: Apr 2004
Posts: 86
Likes: 0
From: Florida
brian..as i mentioned to slide, read the posts in the "weird idling problems" thread and you will see the details of how i went about rebuilding my ecu. also, make sure u read cowboy's write up on this whole issue. his web address is in post 21.
i live in pensacola and it gets just as hot here as orlando. almost always after my car sat in the sun for an hour or so, it would srart rough and run very poorly. that was my biggest clue to bad caps which tend to really break down when hot.
Last edited by SC93; Aug 30, 2013 at 04:43 AM.
Thread
Thread Starter
Forum
Replies
Last Post
dirkdiggle
SC - 1st Gen (1992-2000)
10
Dec 23, 2007 05:23 PM
