280ZX (S130) Forums Dedicated to 79-83 ZCars

minor issue

Thread Tools
 
Search this Thread
 
Old 08-18-2008, 09:20 PM
  #1  
eff good grammar
Thread Starter
 
Niku-Sama's Avatar
 
Join Date: Dec 2007
Location: Deadford OR
Posts: 1,578
minor issue

alright since i have owned this car in november its kinda done this thing where it surges slightly while i am driving steadily down the road, doesent matter the gear and i have been told this is called "hunting" where the computer is trying to find a good mixture. think of light quick jabs on the gass pedal while your driving, it gives that sort of feeling except my foot is steady.

i have cleaned the AFM, there isnt an O2 sensor, it does it at any temp and its just mildly annoying but if i can fix it i will.

i was wondering would a air temp sensor or water temp (before "CHTS" even though its pretty much the same thing) cause this?
what about a minor leak in the exhaust/intake gasket? (very minor)

if not any ideas?
Niku-Sama is offline  
Old 08-19-2008, 05:56 AM
  #2  
Pr0n Addict
 
KasbeKZ's Avatar
 
Join Date: Sep 2007
Location: virginia
Posts: 4,617
those two temp sensors could cause it i expect. you could test them.

and there is no O2 sensor? that sounds like a problem in its self.....
KasbeKZ is offline  
Old 08-19-2008, 01:26 PM
  #3  
eff good grammar
Thread Starter
 
Niku-Sama's Avatar
 
Join Date: Dec 2007
Location: Deadford OR
Posts: 1,578
in my service manual it even says not all of them had a o2 sensor, theres no hook up for one and theres no bung for it on my car
Niku-Sama is offline  
Old 08-19-2008, 02:11 PM
  #4  
Über User
 
snwbrderphat540's Avatar
 
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
what year car? also the CHTS can very well cause problems mine was bad on my 260ZT and would cause it to flood out every now and then
snwbrderphat540 is offline  
Old 08-19-2008, 02:16 PM
  #5  
Externally Wastegated
 
lifegrddude's Avatar
 
Join Date: Oct 2001
Location: San Diego
Posts: 1,220
Have you checked the TPS? My Z used to do the same until I adjusted it.
lifegrddude is offline  
Old 08-19-2008, 02:44 PM
  #6  
eff good grammar
Thread Starter
 
Niku-Sama's Avatar
 
Join Date: Dec 2007
Location: Deadford OR
Posts: 1,578
that was another question, is the TPS really a TPS or is it just a switch that really doesent do much untill ts fully open or closed?

as for the CHTS question, its a '79 so its the water temp
Niku-Sama is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Big Zed
300ZX (Z32) Performance / Technical
4
11-17-2011 07:24 PM
skittle
240Z, 260Z, 280Z (S30) Forums
3
04-19-2007 03:28 PM
280ZX_AV8R
280ZX Performance / Technical
8
08-29-2005 07:10 PM
Bryan Thompson
280ZX (S130) Forums
3
03-14-2005 07:33 AM
mnelsonz
240Z, 260Z, 280Z (S30) Forums
1
07-31-2002 12:31 AM



Quick Reply: minor issue



All times are GMT -7. The time now is 07:22 PM.