i'm thinking most of my idle issues are related to the lack of a camshaft position sensor pad on my intake cam... (the .430 .222 cams didnt come with a cps pad)... so i an assuming getting someone to weld on a pad on the cam would be the easiest solution... my first question is where can i find just the CPS pad? does anyone sell just that?
if anyone can think of any better solutions, i am all ears...
I am having my issues still as well. It seems to me that all of the people who ditched the cam sensor I've read about were pre 99 or the eco guys with the converted wiring and supercharger flash. Im thinking the 00-02 ecu doesnt like it gone at all. It wants to run rich at idle no matter what and tries to rev when im above 5mph especially in neutral.
Well this isnt good lol, I have yet to start my car since I did the cam swap. I have no cps pad either. Mike(MDld9), JrMarks, and others said the car would be ok to run without the cps pad.
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD AUTOMATIC!!
328 HP
306 TQ
Zs Z wrote:I am having my issues still as well. It seems to me that all of the people who ditched the cam sensor I've read about were pre 99 or the eco guys with the converted wiring and supercharger flash. Im thinking the 00-02 ecu doesnt like it gone at all. It wants to run rich at idle no matter what and tries to rev when im above 5mph especially in neutral.
I have the cps pad on my ho cam and the commanded afr is something like 10.5 at a stop light and when the car begin to move it the afr is 14.5
Location: Montreal, Quebec
the is the first ive heard of anybody having issues with idle while having a deleted CPS.
now.. with that said, not many have ran .430 cams in an LD9 PERIOD, let alone minus the CPS so who knows.
i would ask clyde man, he would be the absolute best resource to gather info about this since he used those cams before you.
If it takes forever.... I will die trying. Underdog Racing
Never have had any problems with our ho cams and no sensor pad. With both the re flash and n/a tunes. Both idle around 14.0-15.1. How high is your idle set? May need to raise the idle a slight amount. .430 .222 cams are decently big, what problems are you having??
Other than a lumpy idle, I never had any idle issues that were related to those cams. I never altered my S/C reflash other than to raise the rev limit and change injector constant. I have since made a few changes, but those happened after the engine with those cams was removed.
Are you sure that all possible sources of idle issues have been checked. My memory sucks, could you please refresh it on what is happening.
Mine are identical to Z's Z except I lean out when cold ... My car holds between 2-4k rpm above 5mph 80% of the time as soon as I hit 5mph the idle will drop to 900-1000 rpm ... The rev high deal is 10 timed worse with the ac comp on ... Also when I lean out when its cold, its always reving high and the wideband goes so far towards lean the it displays -- and this occurs even after I let the car warm up in the driveway for 10 min in upper 50 degree weather.
mitdr774 wrote:Other than a lumpy idle, I never had any idle issues that were related to those cams. I never altered my S/C reflash other than to raise the rev limit and change injector constant. I have since made a few changes, but those happened after the engine with those cams was removed.
Are you sure that all possible sources of idle issues have been checked. My memory sucks, could you please refresh it on what is happening.
I am thinking that the supercharger reflash reads the sensors differently since it is a different operating system. I have heard of others with the reflash doing this and plenty of pre99 people doing it but I dont hear so much about 00-02 doing it.
Speedline (No more) (GME Chat) wrote:Mine are identical to Z's Z except I lean out when cold ... My car holds between 2-4k rpm above 5mph 80% of the time as soon as I hit 5mph the idle will drop to 900-1000 rpm ... The rev high deal is 10 timed worse with the ac comp on ... Also when I lean out when its cold, its always reving high and the wideband goes so far towards lean the it displays -- and this occurs even after I let the car warm up in the driveway for 10 min in upper 50 degree weather.
this^ except i idle rich like 10-1 and it smells terrible.
I have changed the map sensor, tps, iac, checked wiring, etc no and change.
My car does the high idle BS when im coming to a stop if I push in the clutch at just the wrong time. A quick tap of the accelerator pedal usualy fixes it. My car has done that since I owned it and my 00 before did the same thing. The lean issues I couldnt really tell you where to begin. Would have to actually watch things with a Tech II to have an idea. I know my current random lean issue is due to a failing fuel pump.
Gas pedal won't fix my problem ... It revs higher and holds ... Turning the ac comp off fixes the problem when the ac is on ...
Zs z has a point ...
Has anyone with an 00 - 02 ECM removed the cps and NOT had an issue?
My 02 has been run without a CPS more than it has with a CPS. I have been on a 2000 S/C reflash for damn near all that time though.
Oddly my 98 has no idle issues at all.
yeah... i forgot to add that part in on my phone
00-02 no CPS, no reflash, only HP Tuned or stock with none of the aforementioned issues
Speedline (No more) (GME Chat) wrote:yeah... i forgot to add that part in on my phone
00-02 no CPS, no reflash, only HP Tuned or stock with none of the aforementioned issues
Thats what I ran in my 03. It was on a stock tune, with 1000 rpm idle, with a rich ve tune so it didnt lean out up top. This was with HO cams.
Honestly it sounds like you have a problem with the throttle body and possibly the tps / iac sensors. The problems you have sounds exactly like the problems we had with the turbo car last year. We got the throttle body problems fixed and all the high idle and lean conditions went away.
i just bought brandon fetter's over bored pre 95 tb... my issues have not changed from using the 95 Quad 4 TB... and his TB came with all the sensors, etc so i can safely rule out the TB. i had also put a brand new IAC valve on the 95 Tb 6 months ago when i first started breaking in the motor, that did not change the issue at all either...
I also replaced everything
i'll also state that before i modded the TPS on the pre 95 TB, the idle stayed at 4 grand... this is not the issue that we're complaining about...
above 5 MPH the car will hold between 2000 - 4000 RPM, with the AC comp on the car will hold between 3000 - 5000 RPM... when the car slows down to 5 MPH, the idle will instantly drop down to where it should (900 - 1000 etc) ... between gears the car will rev higher, slowing to a stop light the car sounds annoying holding something like 3000 until 5 MPH when it drops. the magic number is 5 MPH
mine does crazy crap like that too. 97 pcm. loves to rev hang too between shifts on normal driving and i remember when i was cleaning my tires in the burnout box the revs did not want to drop quickly.
I think it is all tuning, good tuning.
FU Tuning
I still believe it is a tuning problem as well. Your car should run fine without the pad.
Is your sensor still hooked up? Have you disconnected it, and run it?
PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO
Good to hear the reassurance guys!
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD AUTOMATIC!!
328 HP
306 TQ
oh dont say bad tuning, j** s******* will castrate you. his boy joe rutledge tuned this car, its perfect.
If it takes forever.... I will die trying. Underdog Racing
I'm positive mine isn't tuning. My afr's are steady and my maps are smooth plus I have tiny cams anyways. It was doing it on the stock tune before I messed with my afr's. Also it does this when closed loop is enabled.
my sensor has been unplugged since day one. i know my tune isn't perfect but its not causing this. there are just no tuning tables in HPT to correct this issue.
on a side note, it seems with these ECMs, if you force the car into open loop by changing the value on the ECT, the car goes pig rich... .. hptuners doesn't want to answer anyone's emails on that subject.
