Volvo Parts Catalog Volvo Accessories Catalog Volvo Technical Articles Volvo Tech Forums
 
  Search our site:    
View Recent Cars  |   Cart  | Project List | Order Status | Help    
 >  >
Installing an ECU Spacer
 
Bookmark and Share

Pelican Technical Article:

Installing an ECU Spacer

Jared Fenton

Time:

1 hour1 hr

Tab:

$40

Talent:

**

Tools:

T30 Torx driver, silicone sealant

Applicable Models:

Volvo C30 (2007-13)

Parts Required:

ECU spacer

Hot Tip:

Put a small bead of silicone sealant on the lip of the ECU

Performance Gain:

Less restriction in intake system means better throttle response

Complementary Modification:

Change air filter

Installing an ECU spacer in your Volvo is a quick and easy way to reduce some of the air restriction in the intake system. The factory intake system uses incoming air to help cool down the ECU. There are a series of heat sink fins on the back of the ECU that protrude inside the air filter housing. These fins present a bottleneck in the intake system. I suspect that in addition to cooling, they also act somewhat like a muffler for the intake to quiet it down. Raising the height of the ECU off the air filter housing reduces the restriction. This is done with a spacer block in between the ECU and the air filter housing.

In my research, I have found a few examples of noticeable power gains, depending on how the car is tuned. My own experience resulted in better throttle response and likely a few extra horsepower. It would also seem that the effect on cooling the ECU is negligible. In this article, I'll show you how to install the spacer in little more than an hour. Begin by disconnecting the battery. This is important. You risk damaging the ECU if you unplug it with the battery hooked up. See our article on Battery Replacement for more information. You'll also need to remove the air filter housing. See our article on Air Filter Housing Removal for more information.

You'll need to disconnect the negative terminal on the battery before removing the ECU.
Figure 1

You'll need to disconnect the negative terminal on the battery before removing the ECU. Loosen the 10mm nut (green arrow) and pull the negative terminal off the battery. See our article on Battery Replacement for more information.

The ECU is located underneath the right side panel of the air filter housing You'll need to remove the housing to install the spacer.
Figure 2

The ECU is located underneath the right side panel of the air filter housing You'll need to remove the housing to install the spacer. See our article on Air Filter Housing Removal for more information.

Figure 3

Shown here is the ECU spacer for the Volvo C30

Loosen and remove the four T30 Torx screws (green arrows) holding the ECU to the air filter housing.
Figure 4

Loosen and remove the four T30 Torx screws (green arrows) holding the ECU to the air filter housing. At this point, you can take the ECU off.

Here is the ECU removed from the housing.
Figure 5

Here is the ECU removed from the housing. Note the seal (yellow arrow) on the housing. This normally seals against the outer lip (green arrow) on the ECU. I like to put a small coat of silicone adhesive on the lip on the ECU to seal it to the spacer.

Fit the spacer over the locating pins (green arrows) and press it down flush to the housing surface.
Figure 6

Fit the spacer over the locating pins (green arrows) and press it down flush to the housing surface.

Now fit the ECU to the spacer and use the longer bolts supplied to secure it to the air filter housing.
Figure 7

Now fit the ECU to the spacer and use the longer bolts supplied to secure it to the air filter housing. You're now ready to re-install the air filter housing back in the car.

Bookmark and Share

  Search our site:    

View Cart & CheckOut | Project List | Order Status |  Help    

 

[Home] [Customer Service] [Shopping Cart] [Project/Wish List]
  [Privacy Statement]  [Contact Us] [About Us] [Shipping] [Careers]

Copyright © Pelican Parts Inc. -    DMCA Registered Agent Contact Page

Page last updated: Sat 12/3/2016 03:07:04 AM