Here we go again....
My viper is back to stuttering.... I can't tell if it's either a fueling issue or a spark issue.
Found two boost leaks and fixed them. Thought that was my over all issue but apparently not... went for a short rip and its still stuttering...
Seems to be typically around 6000 and Up rpms. Pretty much right where it should be getting into boost.
Here is a youtube video when it's stuttering.
Also here is my first post relating to this issue.
Had it fixed and ran great but unfortunately ended up back in the same spot...
I got to test the coils,original tune and a new inline fuel filter this morning and nothing changed.. still stuttering right at boost.
Afr Gauge reads 13-15 at low cruising speeds 4800-5500 rpms. Idle is 15-16 with the Original tune and rich(10-11) with the 2nd tune When I punch it the AFR wrapped out to 19-20 and that's where the stuttering is... I believe my rpms are well above 6000 when I punch it.
Clearly the sled is pulling fuel when it's getting loaded up.
Took it to a dealer to have fuel pressure checked and its fine at idle about 50psi I think he said. It was within spec from what he told me. Supposedly my buddy now has a fuel pressure gauge and we are gonna try and see if we can get a reading when it's stuttering to see if there is a dip in pressure.
I'm also in touch with Ulmer
My viper is back to stuttering.... I can't tell if it's either a fueling issue or a spark issue.
Found two boost leaks and fixed them. Thought that was my over all issue but apparently not... went for a short rip and its still stuttering...
Seems to be typically around 6000 and Up rpms. Pretty much right where it should be getting into boost.
Here is a youtube video when it's stuttering.
Also here is my first post relating to this issue.
Had it fixed and ran great but unfortunately ended up back in the same spot...
I got to test the coils,original tune and a new inline fuel filter this morning and nothing changed.. still stuttering right at boost.
Afr Gauge reads 13-15 at low cruising speeds 4800-5500 rpms. Idle is 15-16 with the Original tune and rich(10-11) with the 2nd tune When I punch it the AFR wrapped out to 19-20 and that's where the stuttering is... I believe my rpms are well above 6000 when I punch it.
Clearly the sled is pulling fuel when it's getting loaded up.
Took it to a dealer to have fuel pressure checked and its fine at idle about 50psi I think he said. It was within spec from what he told me. Supposedly my buddy now has a fuel pressure gauge and we are gonna try and see if we can get a reading when it's stuttering to see if there is a dip in pressure.
I'm also in touch with Ulmer
