TBI Fuel or no Fuel that is the question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ghettoluxury · 04-28-2011, 10:19 PM

I have a 88 V30 with a TBI 350. The fuel pump will not run when you turn the key on and the injectors will not fire. If I run a power lead to the extra wire on the relay then I get the pump to run and the injectors will fire but not enough to start the truck. If I shoot starting fluid in before attaching the power lead it will start up and stay running. Once running I can remove the lead an it will run fine.

So my question is what makes the pump start for the first time and also primes the intake for the start. The injectors just give little pulses when tring to crank over with the lead hooked up.

Here is a pic of the lead attached to the relay.

Thanks for the help!

Blazenherbs · 04-29-2011, 01:00 AM

Try to check for spark those truck have a ignition control module in the distributor that control the spark and Fuel pump...

http://www.summitracing.com/parts/ACC-35362/

Blazenherbs · 04-29-2011, 01:01 AM

If theirs no spark the module is bad and wont feed gas to the injectors

Their two diferent ones for a 4pin and 8 pin

http://www.summitracing.com/parts/ACC-35361/

ghettoluxury · 04-29-2011, 07:42 AM

There is plenty of spark just no fuel.

Blazenherbs · 04-29-2011, 11:13 AM

Unless the relay is Bad....

ghettoluxury · 04-29-2011, 07:42 PM

replaced it, that was my first thought

04-28-2011, 10:19 PM	#1
ghettoluxury Registered User Join Date: Apr 2009 Location: Waynesfield Ohio Posts: 1,991	TBI Fuel or no Fuel that is the question I have a 88 V30 with a TBI 350. The fuel pump will not run when you turn the key on and the injectors will not fire. If I run a power lead to the extra wire on the relay then I get the pump to run and the injectors will fire but not enough to start the truck. If I shoot starting fluid in before attaching the power lead it will start up and stay running. Once running I can remove the lead an it will run fine. So my question is what makes the pump start for the first time and also primes the intake for the start. The injectors just give little pulses when tring to crank over with the lead hooked up. Here is a pic of the lead attached to the relay. Thanks for the help! __________________ 1949 Five Window, 1973 Step Side, 2000 Z71

04-29-2011, 01:00 AM	#2
Blazenherbs Registered User Join Date: Apr 2011 Location: Pacoima California Posts: 19	Re: TBI Fuel or no Fuel that is the question Try to check for spark those truck have a ignition control module in the distributor that control the spark and Fuel pump... http://www.summitracing.com/parts/ACC-35362/

04-29-2011, 01:01 AM	#3
Blazenherbs Registered User Join Date: Apr 2011 Location: Pacoima California Posts: 19	Re: TBI Fuel or no Fuel that is the question If theirs no spark the module is bad and wont feed gas to the injectors Their two diferent ones for a 4pin and 8 pin http://www.summitracing.com/parts/ACC-35361/ Last edited by Blazenherbs; 04-29-2011 at 01:11 AM.

04-29-2011, 07:42 AM	#4
ghettoluxury Registered User Join Date: Apr 2009 Location: Waynesfield Ohio Posts: 1,991	Re: TBI Fuel or no Fuel that is the question There is plenty of spark just no fuel. __________________ 1949 Five Window, 1973 Step Side, 2000 Z71

04-29-2011, 11:13 AM	#5
Blazenherbs Registered User Join Date: Apr 2011 Location: Pacoima California Posts: 19	Re: TBI Fuel or no Fuel that is the question Unless the relay is Bad....

04-29-2011, 07:42 PM	#6
ghettoluxury Registered User Join Date: Apr 2009 Location: Waynesfield Ohio Posts: 1,991	Re: TBI Fuel or no Fuel that is the question replaced it, that was my first thought __________________ 1949 Five Window, 1973 Step Side, 2000 Z71



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