280ZX Performance / Technical Discussions related to Turbo charging, Supercharging, Engine, ECU, exhaust, and etc. performance enhancements.
Sponsored by:
Sponsored by:

Boost Gauge Reading

Thread Tools
 
Search this Thread
 
Old 09-24-2007, 08:44 PM
  #1  
MegaSquirter
Thread Starter
 
NewZMan's Avatar
 
Join Date: Jul 2007
Location: Capital of Texas
Posts: 58
Boost Gauge Reading

I just replaced all the vacuum lines on my Z. I started her up and the boost gauge is kicking all the way past 7 and staying there at idle. Any ideas on a possible problem? Any help is appreciated.
NewZMan is offline  
Old 09-24-2007, 08:47 PM
  #2  
The Good Twin
 
NismoPick's Avatar
 
Join Date: Aug 2005
Location: Wild Wild West, UTAH!
Posts: 20,639
Vac line hooked up wrong... crappy / broken boost gauge...
NismoPick is offline  
Old 09-25-2007, 02:06 PM
  #3  
MegaSquirter
Thread Starter
 
NewZMan's Avatar
 
Join Date: Jul 2007
Location: Capital of Texas
Posts: 58
Thanks for the response. I have another question. Does the 83 turbo have hydrolic lifters or non-hydrolic?
NewZMan is offline  
Old 09-25-2007, 02:26 PM
  #4  
The Good Twin
 
NismoPick's Avatar
 
Join Date: Aug 2005
Location: Wild Wild West, UTAH!
Posts: 20,639
Check the head casting... it should say P90, or P90A right by sparkplug#1. Most P90A's are hydraulic.
NismoPick is offline  
Old 09-25-2007, 02:41 PM
  #5  
MegaSquirter
Thread Starter
 
NewZMan's Avatar
 
Join Date: Jul 2007
Location: Capital of Texas
Posts: 58
Just checked and it's a P90 A, so I will assume hydrolic. I seem to have a slight tick when I first start it up over #6 cylinder. I might have a weak lifter.

On another note is there a way to check the boost sensor to see if it's still good? Oh, and thanks for the help so far.
NewZMan is offline  
Old 09-25-2007, 05:59 PM
  #6  
MegaSquirter
Thread Starter
 
NewZMan's Avatar
 
Join Date: Jul 2007
Location: Capital of Texas
Posts: 58
figured out the boost issue. it was plugged in to the wrong connector. And also pulled the valve cover and checked. Looks like I might have a weak lifter. I'll just run a heavier weight oil for now. Thanks for your help Nismopick.
NewZMan is offline  
Old 09-27-2007, 05:07 PM
  #7  
MegaSquirter
Thread Starter
 
NewZMan's Avatar
 
Join Date: Jul 2007
Location: Capital of Texas
Posts: 58
Found some info on disassembly and cleaning of the hydraulic lifters. Followed the instructions and now no ticking, purrs like a kitten.
NewZMan is offline  
Old 09-27-2007, 09:09 PM
  #8  
NisTuner
 
duowing's Avatar
 
Join Date: Sep 2005
Location: Cleveland, Ohio
Posts: 2,800
where'd you find this info? I'd like to know as I have a P90A or is it in the Haynes guide?
duowing is offline  
Old 09-30-2007, 07:55 AM
  #9  
MegaSquirter
Thread Starter
 
NewZMan's Avatar
 
Join Date: Jul 2007
Location: Capital of Texas
Posts: 58
duowing the info is on another forum, but here is the link It really helped me out.

On a side note, has anyone had any experience with running some engine flush through the system prior to oil change? I was thinking of doing this, but was concerned with damaging the engine.
NewZMan is offline  
Old 09-30-2007, 11:43 AM
  #10  
The Good Twin
 
NismoPick's Avatar
 
Join Date: Aug 2005
Location: Wild Wild West, UTAH!
Posts: 20,639
Originally Posted by NewZMan
On a side note, has anyone had any experience with running some engine flush through the system prior to oil change? I was thinking of doing this, but was concerned with damaging the engine.
Run some ATF through the motor. I add some, drive it around the block a couple times, let it cool, then drain it.
NismoPick is offline  
Old 09-30-2007, 12:47 PM
  #11  
MegaSquirter
Thread Starter
 
NewZMan's Avatar
 
Join Date: Jul 2007
Location: Capital of Texas
Posts: 58
Thanks I'll give it a try.
NewZMan is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
VanBruno
300ZX (Z31) Forums
4
11-02-2014 10:16 PM
billy280gblk
280ZX Performance / Technical
3
03-20-2004 07:42 PM
Draven
240Z, 260Z, 280Z (S30) Forums
1
06-25-2002 06:34 PM
knemetz
240Z, 260Z, 280Z (S30) Forums
2
02-26-2002 02:22 PM
1AE4me
240Z, 260Z, 280Z (S30) Forums
1
01-15-2002 02:13 AM



Quick Reply: Boost Gauge Reading



All times are GMT -7. The time now is 08:46 AM.