01-27-2005, 12:45 PM
I totalled my car...
just kidding! Thanks SO MUCH to scotty and hunter for talking me through my car problems last night.
Before I start... here's a timeline
1. Bought car
2. Car felt strained at high rpms (could be clogged cat or fuel cut)
3. bought fuel cut defencer (FCD) (car felt a little better) - thought it was fixed
4. bought straight through exhaust (felt a little better)
5. limited boost so it wouldn't creep
6. car felt slow and still strained at high rpms
7. put car on dyno to achieve a whopping 14:1 A/F ratio (SUPER LEAN)
So, there I was trying to figure out why the hell a more or less stock tii was getting such a bad A/F ratio.
After a month of diagnostics from rx7club and a long dinner of discussion with scotty and hunter, I was going to check the FCD and the readings off of the pressure sensor that it hooks into. It was FREEZING this morning so I decided to just yank the FCD out and see what happened.
Immediately, A/F ratios read richer on my o2 readout. I thought, "uh oh, I think I might have found it." Finally, the car was warm and I did a pull from 2500 rpms. BAM! super torquey! PULLED SUPER STRONG!! I haven't boosted this car for a long time, but gawtdayum that car felt faster than I remember it! o2 readings were at 13.0 but I didn't get to look at o2 readout which is more important (not extrapolated) because I got to work REAL fast.
Either way, the car feels like a new machine. I'm still going to check the readings from the pressure sensor and make sure that it's giving proper readings.
If I can confirm readings from my o2 and that they're going significantly higher than before, I probly won't dyno it, but if my results are not 100%, it's time for me to shell out another $120 for use of a wideband.
PS... it felt super fast peaking at only 8psi. (stock is around 9 and it hits 9 much faster than creeping up there)
just kidding! Thanks SO MUCH to scotty and hunter for talking me through my car problems last night.
Before I start... here's a timeline
1. Bought car
2. Car felt strained at high rpms (could be clogged cat or fuel cut)
3. bought fuel cut defencer (FCD) (car felt a little better) - thought it was fixed
4. bought straight through exhaust (felt a little better)
5. limited boost so it wouldn't creep
6. car felt slow and still strained at high rpms
7. put car on dyno to achieve a whopping 14:1 A/F ratio (SUPER LEAN)
So, there I was trying to figure out why the hell a more or less stock tii was getting such a bad A/F ratio.
After a month of diagnostics from rx7club and a long dinner of discussion with scotty and hunter, I was going to check the FCD and the readings off of the pressure sensor that it hooks into. It was FREEZING this morning so I decided to just yank the FCD out and see what happened.
Immediately, A/F ratios read richer on my o2 readout. I thought, "uh oh, I think I might have found it." Finally, the car was warm and I did a pull from 2500 rpms. BAM! super torquey! PULLED SUPER STRONG!! I haven't boosted this car for a long time, but gawtdayum that car felt faster than I remember it! o2 readings were at 13.0 but I didn't get to look at o2 readout which is more important (not extrapolated) because I got to work REAL fast.
Either way, the car feels like a new machine. I'm still going to check the readings from the pressure sensor and make sure that it's giving proper readings.
If I can confirm readings from my o2 and that they're going significantly higher than before, I probly won't dyno it, but if my results are not 100%, it's time for me to shell out another $120 for use of a wideband.
PS... it felt super fast peaking at only 8psi. (stock is around 9 and it hits 9 much faster than creeping up there)
My Tumblr
2008 Felt F75 - Pedal Power
2008 Felt F75 - Pedal Power