TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

Need Help

Thread Tools
 
Search this Thread
 
Old 02-24-2019, 09:16 PM
  #1  
Member

Thread Starter
 
bensbaby's Avatar
 
Join Date: Apr 2008
Location: Smiths Falls
Posts: 446
Received 3 Likes on 3 Posts
Car: 1988 GTA Trans am 1 owner since new
Engine: 383 built
Transmission: 1995 camaro t56 6 speed
Axle/Gears: 3.24 posi 9 bolt
Need Help

I had my 88 gta running yesterday perfectly. Today I went out to try to start it and my car cranked but didn't start
obv it was fuel pump.

I have a new ebay fuel pump relay harness 2 years ago and a napa new fuel pump relay last summer.

after 1 hour hour of pissing around killing my battery

I blew a 20amp fuse....

I put on my old stock relay and the car runs perfectly again !!!
I know in my heart something may be worse going on

so basically I just want some advice....

do you think yesterday when I shut the car off somehow the fuel pump relay shorted out and made the fuse blow.
or do you think its a fuel pump that's bad or internally shorting out , it was done by dealer 20 years ago

or do you think its bad wiring or just that crappy *** defective napa relay????I already had to change it once last summer defective under warrenty.

let me know opioions.....
ty
Old 02-24-2019, 09:31 PM
  #2  
Supreme Member

iTrader: (2)
 
Tootie Pang's Avatar
 
Join Date: Aug 2009
Location: Los Angeles
Posts: 1,972
Received 124 Likes on 91 Posts
Car: 1989 IROC Convertible
Engine: 350 TPI L98
Transmission: WC T5
Axle/Gears: 3.42
Re: Need Help

Crappy defective Napa relay gets my vote!
Old 02-26-2019, 12:48 PM
  #3  
Member

Thread Starter
 
bensbaby's Avatar
 
Join Date: Apr 2008
Location: Smiths Falls
Posts: 446
Received 3 Likes on 3 Posts
Car: 1988 GTA Trans am 1 owner since new
Engine: 383 built
Transmission: 1995 camaro t56 6 speed
Axle/Gears: 3.24 posi 9 bolt
Re: Need Help

ok I thought so

rock auto doesn't list a ac delco unit only the aftermarket kinds

does anyone know if the gm dealers still list it as available
?
Old 02-26-2019, 01:00 PM
  #4  
Sponsor

iTrader: (92)
 
Tuned Performance's Avatar
 
Join Date: Dec 2004
Location: Mile High Country !!!
Posts: 15,407
Received 649 Likes on 573 Posts
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Need Help

Like this acdelco 15-8240 relayhttps://www.rockauto.com/en/catalog/...ing+relay,3380

or
gm 14078915 with is nla
you can convert to the new style, tpiparts.net or efi connection has the parts.

Last edited by Tuned Performance; 02-26-2019 at 01:08 PM.
Old 02-26-2019, 01:02 PM
  #5  
Sponsor

iTrader: (92)
 
Tuned Performance's Avatar
 
Join Date: Dec 2004
Location: Mile High Country !!!
Posts: 15,407
Received 649 Likes on 573 Posts
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Need Help

https://www.eficonnection.com/home/p...nector-pigtail


pigtail or you can use the crimp connectors and terminals.

you would think the ops would of taken over to power the pump. Unless the ops is bad. You had quite a amp draw to blow the 20amp fuse. Bad relay or fuel pump draw.

Last edited by Tuned Performance; 02-26-2019 at 01:11 PM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
davidopliger
V6
4
12-27-2008 01:15 AM
jcurrieirocz
Transmissions and Drivetrain
10
07-22-2005 09:52 AM
chuck6860
Tech / General Engine
12
07-23-2002 09:36 AM
85Firebird_Nitro
V6
59
09-20-2001 11:03 AM
JDMZ28
Tech / General Engine
8
03-08-2001 05:31 PM



Quick Reply: Need Help



All times are GMT -5. The time now is 10:12 AM.