P80 Ignition Switch, Root Failure Analysis

MVS Moderator and Volvo DIY fan Abscate looks closely at what fails on P80 ignition switches. If you’re having trouble starting your P80 Volvo, this shows you what is broken and what you can do to fix it. Most of us have had to replace the electrical part of our ignition switch on high mileage […]

Octane And The Turbocharged Engine

Fast Friday Volvo Performance and Tuning

Any time you compress air it’s going to increase in temperature, with a turbo charger it’s no different. The more boost you run the more heat is imparted to the air going into the engine. This heat along with latent heat from the previous combustion cycle can increase enough that the fuel can actually ignite before the spark plug lights it off, which is called pre-ignition or ping. Pre-ignition can be very damaging to an engine if it is severe enough or occurs over a long enough period of time. So higher octane fuels help avoid this.

3… 2… 1… Ignition!

Fast Friday Volvo Performance and Tuning

The ignition coils used on most cars today haven’t changed all that much in the last 50 years. A simple set of windings that when provided electricity creates a magnetic field that when collapses is amplified and creates enough voltage potential that it can jump a gap between two points. For our purpose with this article that’s as far as we’ll go with the understanding of transformer (ignition coil) fundamentals. Let’s instead focus on the bigger picture as it relates to misfires, specifically those that occur from increase boost and power development.

Key Won’t Turn Past Position I

Ignition Won’t Turn Past Position I https://www.matthewsvolvosite.com/forums/viewtopic.php?p=97472#p97472 Having removed the plastic covers and electric bits away from the area, I chiseled off the metal plate at the bottom of the lock. I found a broken piece of casting inside but the guillotine would still not move down. With the chisel and a pair of cutters, […]