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bobbyhi
05-03-2008, 08:45 PM
When I took the Z out today it would stutter/miss at 4500 rpm and up.
The gas is fresh and the injectors just come back from RC for cleaning and R&R. I really don't know where to start. Could be fuel problem??? Could be vaccum??? Could be electrical???? Something not hooked up right??? Any suggestions will be helpful.
Kevin
05-03-2008, 09:52 PM
could be actuators could be vaccum
Jeffvette
05-03-2008, 10:26 PM
Bob, does it do it in both full power and normal power modes?
bobbyhi
05-03-2008, 10:52 PM
Bob, does it do it in both full power and normal power modes?

Didn't try it in the normal mode - too late in the day. I'll try that tomorrow and let you know.
bldavis11
05-03-2008, 11:09 PM
When I took the Z out today it would stutter/miss at 4500 rpm and up.
The gas is fresh and the injectors just come back from RC for cleaning and R&R. I really don't know where to start. Could be fuel problem??? Could be vaccum??? Could be electrical???? Something not hooked up right??? Any suggestions will be helpful.
If it were vacuum, you should experience problems earlier in the RPM band depending on how aggressive you are with the right foot. Regardless, you'll see problems when you're in the 3K range. Likewise and electrical problem should always be there. The sparks aren't any bigger! My vote is for inadequate fuel pressure, likely secondary (no pun intender) to the pumps.
32valvZ
05-04-2008, 10:43 AM
Heres my limited input.....possibly crossed an igniton wire at one of the the coils,(if they were removed) bad secondary vacume actuators/linkage.
bobbyhi
05-04-2008, 06:31 PM
I rehooked a vaccum line that was loose and seems to be working fine now. I tried it in the normal mode and never realized just how slow the car runs in that mode. Put her on full power and she was screaming for more:mrgreen: Thanks guys for your suggestions.
Paul Workman
05-04-2008, 07:56 PM
I rehooked a vaccum line that was loose and seems to be working fine now. I tried it in the normal mode and never realized just how slow the car runs in that mode. Put her on full power and she was screaming for more:mrgreen: Thanks guys for your suggestions.

For the record, which vacuum line was it that you reconnected? Just curious. (Before you said a vacuum line, I was focused on whether the secondary fuel pump was running. SO! The vacuum thing was a bit of a surprize (to me), if it was anything other than one of the MAPs.

P.
bobbyhi
05-04-2008, 08:50 PM
The line that comes from under the plenum and connects about half way into the plenum on the drivers side.