In the process of installing a replacement pump kit into my 90' L-98.

Racetronix # FPA-010. Which includes a replacement harness.


The purple wire connects to the sending unit, however the terminal differs from the existing connection. The existing wire is permanently attached to the sender.


Can this wire be cut and spliced? Or attempt to open up the existing sender terminal and attach that way?

There is also an extra ground wire coming from the pump connector end of the replacement harness. Can this be taped up, out of the way?

I have e-mailed Racetronix but don't expect a reply until Mon. the earliest.

Does this appear to be the OEM sending unit? Is this how the sending wire is attached or does it appear to be a replacement?

 

I just put a Racetronics fuel pump kit into my 1985 so I can not directly answer your question because the 85 has a different in tank wiring harness. I did have a couple of questions and got quick replies through the Racetronics forum. It's different to have to use a forum like that for tech support instead of just the usual email but that is how they work, and they do respond pretty quickly. I do not think I can attach their PDF instructions to this post, at least I do not know how to. If you pm me I think I could attach it to that. Or I could just attach it to a regular email. The instructions I got were their 89 to 96, it seems that all they offer, everything is the same except for the wiring harness connections are different for the different years.

Brian

 

Thanks Brian,

After posting this thread I received a PM from Racetronix support instructing me to register for forum access.

I viewed the PDF instructions.

It appears that both purple wires need to be removed from their respective connectors. Then the OEM float sender wire is inserted into the "new" harness connector which is then plugged into the bulkhead.

Seems like a quality kit and the Walbro pump is "made in the USA".
The lack of instructions and forum based tech support is odd however.
Hopefully it goes in tomorrow.

 

just did my 94 with the racetronix pump a week ago. go on blowerworks.net and look on the list to the left of the screen. click on downloads, then a few links down is a guide to replacing, i believe 90-96 pumps. has instructions and pictures and all! on mine, my purple wire wasnt permantly on like that, and the ground wire got plugged in right by the purple wire

 

On my '90 there is no connection on the float sender that will accept the additional ground wire. The kit contains a clamp with a male spade connector soldered on. That is where the ground wire terminates. This is one of two clamps included in the kit. The clamps were used to secure the section of hose that replaces the pulsator. The ground wire was terminated at the clamp but will not provide an adequte path to ground, rather it was used to secure the wire.

A few pics / tips on my install.....

1. After removing the pump assembly from the tank, remove the harness from the pump connection.

2. Remove the pump from fuel tree by pushing the pulsator upward to create clearance from the lower pump retainer, separate the pump from the pulsator and bracket. No bending of the bracket required!

3. Remove the harness from the bulkhead connection. First remove the orange lock pin by prying up.

Then pry the tab to release the connector.


In my application the purple sender wire is permanently attached to the sender, it must be removed from the OE connector and inserted into the new harness included in the kit.

4. To remove the wires, first remove the grey lock pin by holding a screw driver at a 45 deg. angle, press up and in to release. Flip and repeat on the other side.


5. Insert a #1 size paper clip (small) into the groove (red arrow) to release the wire.


A shot of the wire end, note the tab that must be depressed.


6. Swap the OE wire into the correct location, replace grey lock pin.

7. Install the pump, connect the harness. Be sure to install the sock in the same position as the OE.


The kit contains a small tube of silicone grease. This can be applied to both sides of the bulkhead seal, retaining screws / orings and a small amount to the steel lines to ease the installation of rubber hoses.

8. Install into the tank using the new fasteners.

Before


After

A side note. As seen in the above pic you can see that I have attached the ground wire to the clamp spade. Racetronix instructs to place this wire onto the float sender if there is a provision (male spade). If no provision is present, the spade clamp should be attached to the float sender housing / pipe and the ground wire connected. This is a redundant ground.

Link to registration for Racetronix forum
http://www.racetronix.com/supportforum.html

PDF instructions
http://www.blowerworks.net/download/GSS340IG.pdf

 

send this to socalman to be inserted in our new how to sticky. I think it could be useful! Good job and thanks for the info.

 

There are 3 versions of our C4x in-tank harness. All of these are listed on our web page.



The rubber hose will not provide a ground for this clamp / wire. The grounding clamp is to be located on the body of the sender.

The silicone grease is not used for the in-tank terminals or external connections. Gas will dissolve this grease and in high enough concentrations contaminate the O2 sensor. The grease is to wet the bolt o-rings when installing the gasket.

 

Got it- thanks