#1 |
First off - nothing about my current setup has changed in quite some time.
Lately I've been having a good bit of pinging starting at about 14 psi on up, in second gear and up. I let it go for a couple of weeks and just drove it easy until I would have time to dig in and see what was going on. ALSO - I've only been letting it boost up to 10psi for the most part, but if I get on it at all, a couple seconds after I let off the gas I can smell... something. I don't know how to describe it, really. The smell has a fuel component to it, but it's not a straight fuel smell. I don't know if it's related or not. I feel like I only notice the smell when the BOV vents...
Today was worse - I would get on it a little and it just didn't want to accelerate normal until maybe 3500 rpm and up - whether it was boosting or not. It could be hitting 10 psi and accelerating like it's not boosting at all. It's most noticeable in second gear where it would accelerate slow up to a certain RPM and then basically launch, but it's not consistent. Acceleration is a little jerky as well. When I got home today it was not idling right at all - sounded like a tractor and the tach needle was jumping around.
I took some video of the idle:
Idle Video
While the idle is off pretty much throughout the video, starting around 3:30, and then at 4:22 the needle does some funky stuff.
At this point all I have done is verified that there are no intake leaks and fuel pressure is where it should be. Timing is right, TPS is right, and as I said, I haven't changed anything. Did a tune up just a couple/few months ago.
What I have NOT done yet is run the codes... just haven't had time yet. I was going to do it when I got home today, but my scanner wouldn't turn on and I didn't have time to hook up the test light and everything, so I'll try to get that done later tonight.
I'm wondering it my Chinese TFI is finally failing me. Thoughts???
Lately I've been having a good bit of pinging starting at about 14 psi on up, in second gear and up. I let it go for a couple of weeks and just drove it easy until I would have time to dig in and see what was going on. ALSO - I've only been letting it boost up to 10psi for the most part, but if I get on it at all, a couple seconds after I let off the gas I can smell... something. I don't know how to describe it, really. The smell has a fuel component to it, but it's not a straight fuel smell. I don't know if it's related or not. I feel like I only notice the smell when the BOV vents...
Today was worse - I would get on it a little and it just didn't want to accelerate normal until maybe 3500 rpm and up - whether it was boosting or not. It could be hitting 10 psi and accelerating like it's not boosting at all. It's most noticeable in second gear where it would accelerate slow up to a certain RPM and then basically launch, but it's not consistent. Acceleration is a little jerky as well. When I got home today it was not idling right at all - sounded like a tractor and the tach needle was jumping around.
I took some video of the idle:
Idle Video
While the idle is off pretty much throughout the video, starting around 3:30, and then at 4:22 the needle does some funky stuff.
At this point all I have done is verified that there are no intake leaks and fuel pressure is where it should be. Timing is right, TPS is right, and as I said, I haven't changed anything. Did a tune up just a couple/few months ago.
What I have NOT done yet is run the codes... just haven't had time yet. I was going to do it when I got home today, but my scanner wouldn't turn on and I didn't have time to hook up the test light and everything, so I'll try to get that done later tonight.
I'm wondering it my Chinese TFI is finally failing me. Thoughts???
Brian Leavitt
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels
'86 TC 5-Speed -- MS2x w/COP | 83 lb. injectors | T3/T4 50 Trim Stage 3 .63AR | Full 3" Exhaust - No Cat | Motorsport FMIC | Ranger Roller | Ported E6 | Walbro 255HP | Kirban | 20psi | 120-amp 3G | 8.8" 3.55 rear | '03 Cobra Wheels