I have a 1997 z71 with 5.7l. It started missing bad. Replaced cap,
button, wires plugs and it still does this. I have it at the local
shop and he is scratching his head. Scope shows misfires on 5 and 6.
With a good coil and 125 psi compression what else could it be??
I have been reading here so please if you have helpfull suggestions
PLEASE post them. If your intent is to childishly bicker and criticize
others then move on.
Thanks in advance!
On 25 Feb 2007 12:51:55 -0800, firstname.lastname@example.org wrote:
Is that 125 on all cylinders or just those two as it is a bit low.
Also have you done a wet and dry compression check on them? (with oil
squirted in cylinder for wet test) Might check crank posotion sensor
as it provides a timing referance and also the magnet pickup coil in
distributor (they call it a cam position sensor now but it is still
basically the same thing but the new name sounds more hightech). Might
do a fuel pressure check to see if it is fuel starving a bit too and
change fuel filter if it has not been done yet.
For what seems like the 4000th time, it is not the same thing and
has nothing to do with the function that the previously used
distributor pick-up coils did.
Cylinder identification only so the injectors can be fired in
sequence (or 'sequins' in your book).
You must get your rocks off sending people on wild goose chases.
I guess you cannot follow the posters request huh, you are a real
troll!. BTW, you can call it a CPS till cows come home if it makes you
happy but you need to focus more on helping and less on being a arse
and getting you ducks in a row too.
BTW, if you knew half of what you claim you would know that while the
CPS does not normally cause timing problems it does provide a 1 X
signal to VCM (crank position sensor provides a 4x signal on V8's and
3x on V6's) that is used some for misfire diagnois by VCM and DTC code
generation related to misfire so it is not out of the loop as you
Snofraud, he already knows that it is misfiring on cylinders 5
and 6 (IOWs, the cam position sensor is doing its job). So,
other than some overwhelming desire to be exceedingly obtuse,
what's your point?
Read what I wrote Snobozo.
I never said the cam position sensor was "out of the loop."
I merely refuted your assertion that it functions and performs
the same as an HEI pick-up coil. It doesn't, no matter how much
you want to believe it does.
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