Ok heres what it dose, when i roll on the throttle easy it pulls fine but when i floor it it sputters and cuts out. I putt my timing to 15 and still dose it, but when i advance it all the way it pulls hard and boosts up fine but idles really high, i advanced it a little more than 15 and it pulls hard in 1st floored then sputters in 2nd, floored. Im running a sr20 t25 on stock boost.
hmmm. almost sounds like a faulty tps? Might want to wait for another member to chime in with a response before you go buying stuff
I tried a different ecu today did the same thing i also tried a different CAS and it didnt change anything, i think its TPS or MAF how do you test a tps and is there a maf that will work from a different motor.
Forgot to say that my ecu isn't throwing a code, and when i start my car cold it idles down then dies but if i give it some gas for a sec it will idle on its own. Also its doing this weird thing where it will idle at like 1k when warmed up but after i drive it around for 10min or so it will idle at like 2,5k then after drive it some more it will idle at 1,5k, it just keeps fluxuating idles.
Im about to hold this thing at rev limiter tell she blows!
Not the same motor, but my vg is having a problem with the same symptoms as this. It has a sort-of normal function, then out of nowhere it will bogg really hard. Try to give it gas and it just boggs more.
I can trick it a little, if I need to while driving, by turning the car on and off again. But it ultimately comes back..
In the morning Im going to check the MAF using this method:
http://www.ehow.com/how_6146478_check-flow-sensor-1984-300zx.html
Then if that doesnt pan anything out the TPS is getting replaced.
Please update us on this!
hostile s12 on 01:54:54 AM / 20-Dec-10Im about to hold this thing at rev limiter tell she blows!
Check your vacuum lines. Its gotta be something simple.
That sounds like what I had on the Big Block CA. Add extra earths to your coilpacks & run them back to the plenum chamber where the 2 loom earths are. It makes a noticable difference on a working car as well. I ended up frying my AVC-R becuase the coils earthed through it because of the bad connection they had (an expensive lesson learnt there).
Candellan on 02:54:41 PM / 20-Dec-10That sounds like what I had on the Big Block CA. Add extra earths to your coilpacks & run them back to the plenum chamber where the 2 loom earths are. It makes a noticable difference on a working car as well. I ended up frying my AVC-R becuase the coils earthed through it because of the bad connection they had (an expensive lesson learnt there).I tried this today and didn't fix my sputter problem, thanks tho.
Still haven't figured this out i messed with the TPS (nothing), unplugged knock sensor (nothing) except throw the code, unplugged o2 didn't change anything and (didn't throw a code?), checked intercooler piping and is all good, still waiting on a FPR anyone have any input. Im about to run it with the timing advanced all the way and say F it.
My dohc ka did the exact same thing, but i never fixed it.
I have a vid, ill update this post once i find it.
EDIT: Got it, tell me if this is what its doing. If it is, then its prolly something the CA, VG, KA all have in common.
http://vimeo.com/9743360
Ignore my voice, i had a cold lol, and no my throttle cable wasnt unhooked like i said.
Disconnect o2 sensor and take it for a drive. Worth a try. Mine almost wouldn't drive, now it's running OK after I disconnected it.
Deezus on 06:59:38 AM / 27-Dec-10My dohc ka did the exact same thing, but i never fixed it.
I have a vid, ill update this post once i find it.
EDIT: Got it, tell me if this is what its doing. If it is, then its prolly something the CA, VG, KA all have in common.
http://vimeo.com/9743360
Ignore my voice, i had a cold lol, and no my throttle cable wasnt unhooked like i said.
SlickS12 on 03:49:06 AM / 28-Dec-10Disconnect o2 sensor and take it for a drive. Worth a try. Mine almost wouldn't drive, now it's running OK after I disconnected it.
Have you done a compression test? It could be something stupid simple like a fouled plug or bad spark plug wire. Try new spark plugs, cheep and easy to do.
Do you feel it when the car sputters or can you just hear it?
Prolowtone on 01:15:57 PM / 06-Jan-11Have you done a compression test? It could be something stupid simple like a fouled plug or bad spark plug wire. Try new spark plugs, cheep and easy to do.
Do you feel it when the car sputters or can you just hear it?
Fixed- it was a bad o2, i put in a new ca18et one and it fixed all my problems.
Thanks for all the help guys.
is your engine JDM or Euro? Timing for JDM is 10 degrees. Euro is 15 degrees
Keith on 01:19:04 AM / 12-Jan-11is your engine JDM or Euro? Timing for JDM is 10 degrees. Euro is 15 degrees
hey hostile question it seems like my cadet swap is doing the same as your was, i have the sr t25 turbo i just dnt know what dump tube i have i took off the old o2 sensor and it was small compared to the ca18et one the caet o2 is alot bigger than the one i took out bro i bought a new caet o2 from a 1984 caet, does that make a difference? i am so lost dude
this is what it does i turn it on it runs rich and it wont idle it kinda wants to after i rev it a lil than it dies,
it wont rev just a lil but barely not enough to build boost and let the bov whistle lol
ive wanted to give up so many times i just know it will be worth it in the end
i would appreciate the help guys
its a stock cadet sr t25 turbo, 255 walbro hks ssqv
singl cam KAE MAF done by previous owner
idk wtf!
^
idk, but a KAE maf could throw off your motor, ive never done it but a ive seen people putting z32 mafs on KAs and SRs without tuning for them, and they made the motor run like poop.
damn man well idk what to do man i cant find a cadet maf at all dude,
Deezus on 06:16:15 AM / 18-Jul-11^
idk, but a KAE maf could throw off your motor, ive never done it but a ive seen people putting z32 mafs on KAs and SRs without tuning for them, and they made the motor run like poop.
Deezus on 06:16:15 AM / 18-Jul-11^
idk, but a KAE maf could throw off your motor, ive never done it but a ive seen people putting z32 mafs on KAs and SRs without tuning for them, and they made the motor run like poop.
Hostile, I ended up picking Newby's car and engine up. Problem was the MAF wasn't wired in right. I'm still getting the wiring put back together (and I plan on re-ROMing the ECU myself, to use the KA-E voltage tables) so I haven't tested the MAF, itself, but once I get the harness back on the engine, I'll know for sure.
I'll see about that fuel regulator, though.