Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

Correct psi?

Thread Tools
 
Search this Thread
 
Old Jul 17, 2012 | 06:30 AM
  #1  
lakeport's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2010
Posts: 91
Likes: 0
From: SW Ontario
Car: 1988 GTA Trans AM
Engine: 305 TPI
Transmission: 5 speed
Correct psi?

I have installed my replacement injectors, I just want to make sure my pressure testing is being done correctly, and also that my pressure is correct

With gauge connected, and key turned on, pressure jumps up to 45-48 psi
turn key off, and pressure does not drop right away, after 30 min I still had 28 psi, is this good? no lines were pinched, not sure if need to if doing a injector leak down test?
Reply
Old Jul 17, 2012 | 06:57 AM
  #2  
sofakingdom's Avatar
Supreme Member
20 Year Member
Community Builder
iTrader: (1)
 
Joined: Sep 2005
Posts: 27,819
Likes: 2,406
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Correct psi?

That all sounds reasonable, basically within test equipment and parts tolerances.

How does the car run?

"If it RUNS good, it IS good".
Reply
Old Jul 17, 2012 | 07:48 AM
  #3  
lakeport's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2010
Posts: 91
Likes: 0
From: SW Ontario
Car: 1988 GTA Trans AM
Engine: 305 TPI
Transmission: 5 speed
Re: Correct psi?

Thank you for the fast reply, really appreciate it

I would have like to start it up last night but noticed I had a cracked spark plug wire, just replaced last fall dangit, just my luck.

Tonight on way home I will be getting a new set, and will post back if/how it runs, fingers crossed, hope all goes well
Reply
Old Jul 18, 2012 | 07:17 AM
  #4  
lakeport's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2010
Posts: 91
Likes: 0
From: SW Ontario
Car: 1988 GTA Trans AM
Engine: 305 TPI
Transmission: 5 speed
Re: Correct psi?

Good news, car starts and runs, weird thing is it didnt idle correctly till I unhooked a vacuum line, just connected EGR that was missing.

are my vacuum lines right? the sticker under my hood shows that egr connects to solenoid, other side of solenoid goes to a t, one goes to throttle body other goes to top of a vavle thingy that goes to charcoal canister, this valve thingy has 2 connections, the bottom one goes to the plenum....is this correct?

I have seen so many darn diff vacuum diagrams i dont know what is right

also, my firewall has 2 small plastic lines, one goes to heater controls correct? does the other go to crusie? should these 2 lines connect to a t and then to plenum back by the FPR?

thanks in advance again!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
92-Formula
TPI
10
Dec 12, 2015 10:34 PM
customblackbird
Power Adders
71
Oct 1, 2015 04:30 PM
eustodp
Electronics
8
Sep 20, 2015 05:09 PM
ChristinaMarie
Exhaust
12
Sep 11, 2015 06:28 PM
89fast5oh
Exhaust
2
Sep 8, 2015 09:55 AM




All times are GMT -5. The time now is 09:47 AM.