What is special about VTEC engines?
The VTEC system uses two camshaft profiles and hydraulically selects between the two. The incredible feature of this technology is that the engine can have the low-speed and high-speed camshafts in the same engine. In fact, the main idea with Honda i-VTEC is to have the maximum engine performance at every RPM range.
When did Honda come out with the VTEC engine?
Eventually the mechanism evolved into Honda’s VTEC (Variable Valve Timing & Lift Electronic Control System) engine. Launched via the 1989 Integra, this innovative technology surprised the world with a new level of performance from a compact, fuel-efficient engine. “Find a new technology to lead the next generation of Honda engines.”
What are the most common problems with VTEC?
The most common VTEC issues we see are, in order of frequency: very low engine oil levels that result in starvation under hard accelleration, faulty VTEC oil pressure switches, faulty VTEC oil control solenoids, sludged / clogged oil passages in the VTEC oil control circuit, wiring harness / connector terminal damage, bad PCM.
Why is my VTEC switch not working properly?
Make sure you check your oil level ASAP as some VTEC DTCs are set due to a loss of oil pressure due to low oil levels. The misfire DTC’s can be disregarded until the VTEC system is operating correctly. Well, I took it back to the dealer where I bought it and they told me it was the oil pressure switch.
What is the code for a VTEC DTC?
The P2647 is a VTEC pressure switch high voltage DTC. It may be as simple as needing to replace the switch (P/N 37250-PNE-G01). The switch is the part indicated as #12.
Which is better a VTEC engine or a regular engine?
However, there are legitimate reasons for it. Hondas with VTEC engines are much more efficient across a wider RPM range than most other vehicles, and arguably are much more fun to drive for those of us who value pick up and go. But for a large majority of us, you’ll likely not “ride VTEC” in everyday driving.
How does the VTEC system in a car work?
For a combustion engine to work, it requires four things: Air, fuel, compression, and spark. For the purposes of understanding the VTEC system, we’ll focus here mainly on the air part of that equation. A part of the engine known as the camshaft controls how much the valves open and then close, and therefore how much air goes into the engine.
The most common VTEC issues we see are, in order of frequency: very low engine oil levels that result in starvation under hard accelleration, faulty VTEC oil pressure switches, faulty VTEC oil control solenoids, sludged / clogged oil passages in the VTEC oil control circuit, wiring harness / connector terminal damage, bad PCM.
What kind of VTEC system does the are series engine use?
The i-VTEC system in the R-Series engine uses a modified SOHC VTEC system consisting of one small and two large lobes. The large lobes operate the intake valves directly while the small lobe is engaged during VTEC.