vtec solenoid
Thread Starter
Registered User
Joined: Sep 2005
Posts: 67
Likes: 0
vtec solenoid
i'm getting the wonderful cel light that tells me i have "vtec solenoid failure" i'd like to check the wires around the solenoid but i don't know where it is or looks likes.. can you guys help me out.... thanks...
Registered User
Joined: Mar 2005
Posts: 12,471
Likes: 0
From: Flintstone GA
Basically, it engages the high cam profile.
From Wikipedia:
Honda's VTEC system is a simple method of endowing the engine with multiple camshaft profiles optimized for low and high RPM operations. Instead of one cam lobe actuating each valve, there are two - one optimized for low RPM stability & fuel efficiency, with the other designed to maximize high RPM power output. Switching between the two cam lobes is determined by engine oil pressure, engine temperature, vehicle speed, and engine speed. As engine RPM increases, a locking pin is pushed by oil pressure to bind the high RPM cam follower for operation. From this point on, the valve opens and closes according to the high-speed profile, which opens the valve further and for a longer time. The DOHC VTEC system has high and low RPM cam lobe profiles on both the intake and exhaust valve camshafts.
The VTEC system was originally introduced as a DOHC system in the 1988 Honda Civic CRX SiR sold in Japan and Europe, which used a 160 hp (119 kW) variant of the B16A engine. The US market saw the first VTEC system with the introduction of the 1990 Acura NSX, which used a DOHC VTEC V6 with 270 hp. DOHC VTEC engines soon appeared in other vehicles, such as the 1992 Acura Integra GS-R (B17 1.7 liter engine). And later in the 1994 Honda Prelude VTEC (H22 2.2 liter engine) and Honda Del Sol VTEC (B16 1.6 liter engine).
Honda has also continued to develop other varieties because VTEC is known for racing and most people don't understand the purpose of Honda VTEC road going cars. Today, Honda offers several varieties of VTEC: IVTEC, IVTEC Hybrid and VTEC in the NSX and some Japanese domestic market cars.
From Wikipedia:
Honda's VTEC system is a simple method of endowing the engine with multiple camshaft profiles optimized for low and high RPM operations. Instead of one cam lobe actuating each valve, there are two - one optimized for low RPM stability & fuel efficiency, with the other designed to maximize high RPM power output. Switching between the two cam lobes is determined by engine oil pressure, engine temperature, vehicle speed, and engine speed. As engine RPM increases, a locking pin is pushed by oil pressure to bind the high RPM cam follower for operation. From this point on, the valve opens and closes according to the high-speed profile, which opens the valve further and for a longer time. The DOHC VTEC system has high and low RPM cam lobe profiles on both the intake and exhaust valve camshafts.
The VTEC system was originally introduced as a DOHC system in the 1988 Honda Civic CRX SiR sold in Japan and Europe, which used a 160 hp (119 kW) variant of the B16A engine. The US market saw the first VTEC system with the introduction of the 1990 Acura NSX, which used a DOHC VTEC V6 with 270 hp. DOHC VTEC engines soon appeared in other vehicles, such as the 1992 Acura Integra GS-R (B17 1.7 liter engine). And later in the 1994 Honda Prelude VTEC (H22 2.2 liter engine) and Honda Del Sol VTEC (B16 1.6 liter engine).
Honda has also continued to develop other varieties because VTEC is known for racing and most people don't understand the purpose of Honda VTEC road going cars. Today, Honda offers several varieties of VTEC: IVTEC, IVTEC Hybrid and VTEC in the NSX and some Japanese domestic market cars.
Thread
Thread Starter
Forum
Replies
Last Post