mikelv
15+ Year Contributor
- 566
- 10
- Jun 17, 2006
-
Columbus,
Georgia
Ok, I know this is a boring topic probably over-work on these boards, but I'm looking for some fresh ideas to help me out here. I'm pretty sure I have an idea of what's going on but some backing would most def be appreciated.
Okay, I just bought myself another daily driver so I can build a FWD monster out of the GS-T. I found a 98 GS-T with the following mods for pretty cheap.
98 GS-T Burgundy w/ Tan Leather
16g turbo
Full Exhaust
550's w/ an AFC
255 pump
1G CBV crushed
MBC
some other basic stuff...nothing fancy.
Anyways, my goal is to completely get this thing stock. Maybe some nice breaks/suspension, stiffer shifter bushings, ect... and wheels but that's about it. I've got two other power houses, it's not what I need.
Here's the issue, this car has 164K on the clock, the most I have ever ran or owned on a DSM. I have an idea that maybe the rings are a little worn on it, and I'm losing some gas....not to big on this, but during oil changes, I don't smell any fuel in the oil, and the car doesn't have tuning issues.
The highway mileage on this thing is actually great. I can easily get 400 miles out of the tank or close to it if I drive nice and easy...this is typical of all my DSM's tuned correctly for mileage on the highway. The problem is in the city...I literally am lucky to get 220-230 out of it. I can easily get 100 more miles out of a tank on my other cars in similar conditions. Anways, I wanted to list a couple of ideas that I'm going to do/try and I just wanted to use this thread to double-tap my ideas, get some fresh ones and make sure I'm not missing anything.
So far, I haven't done too much, but I'm just bouncing ideas.
These are the things I suspect & plan to do:
Look, I'm not a stock guru with these things...I can't even remember the last time I had a DSM this close to stock, (probably 10 yrs ago) so feel free to chime in if I've missed some ideas. I'm use to being able to tune with full or almost full control of the ECU parameters/systems. I mean, I get better mileage out of the street beast than this thing.
One last thing, I have a CEL, but it's for a BCS malfunction....I put in a MBC, so I don't think there is an issue there, but someone re-fresh me if the BCS malfunction will get the ECU fuel maps going haywire. If I remember correctly, the maps might max out fuel if they think there is a turbo-overload/fuel cut-type issue. Been a long time man, hit me up!
Thanks,
Mike
Okay, I just bought myself another daily driver so I can build a FWD monster out of the GS-T. I found a 98 GS-T with the following mods for pretty cheap.
98 GS-T Burgundy w/ Tan Leather
16g turbo
Full Exhaust
550's w/ an AFC
255 pump
1G CBV crushed
MBC
some other basic stuff...nothing fancy.
Anyways, my goal is to completely get this thing stock. Maybe some nice breaks/suspension, stiffer shifter bushings, ect... and wheels but that's about it. I've got two other power houses, it's not what I need.
Here's the issue, this car has 164K on the clock, the most I have ever ran or owned on a DSM. I have an idea that maybe the rings are a little worn on it, and I'm losing some gas....not to big on this, but during oil changes, I don't smell any fuel in the oil, and the car doesn't have tuning issues.
The highway mileage on this thing is actually great. I can easily get 400 miles out of the tank or close to it if I drive nice and easy...this is typical of all my DSM's tuned correctly for mileage on the highway. The problem is in the city...I literally am lucky to get 220-230 out of it. I can easily get 100 more miles out of a tank on my other cars in similar conditions. Anways, I wanted to list a couple of ideas that I'm going to do/try and I just wanted to use this thread to double-tap my ideas, get some fresh ones and make sure I'm not missing anything.
So far, I haven't done too much, but I'm just bouncing ideas.
- Removed the 550's
- Zero'd out the AFC
- New Tires
- Replaced both O2 sensors
- Reguar oil changes and premium fuel is used always.
These are the things I suspect & plan to do:
- Fix a small flange exhaust leak in the down pipe
- Run a boost leak test, (holds 17 psi without drop/creep ect... fine right now)
- Take out the 255 pump
- Try running something thinner than 10W30---maybe 5 weight, but it's too hot in SC, I actually would like to continue to run 15W as I do in all my other cars in the summer.
- Completely remove the AFC and make sure ECU wiring is completely fine.
Look, I'm not a stock guru with these things...I can't even remember the last time I had a DSM this close to stock, (probably 10 yrs ago) so feel free to chime in if I've missed some ideas. I'm use to being able to tune with full or almost full control of the ECU parameters/systems. I mean, I get better mileage out of the street beast than this thing.
One last thing, I have a CEL, but it's for a BCS malfunction....I put in a MBC, so I don't think there is an issue there, but someone re-fresh me if the BCS malfunction will get the ECU fuel maps going haywire. If I remember correctly, the maps might max out fuel if they think there is a turbo-overload/fuel cut-type issue. Been a long time man, hit me up!
Thanks,
Mike