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It may not display this or other websites correctly. You should upgrade or use an alternative browser. Terms 1 2 Next. I think you have to be moving.
I don't know the speed, but I am pretty sure you can't hit vtec in neutral. Is your ECU throwing any codes? You could here my z6, but it was very very faint. I agree you feel almost nothing at crossover. The car has to be moving, though. While driving we ran a wire from a power source straight to the solenoid to try and engage vtec manually while giving it gas and nothing, my tuner has tried to move vtec as well to a different engagement point and nothing.
It always sucks to have these kinds of issues, so let me get that out the way first. Can I ask a few more questions? Did your VTEC ever work? Original ECU? What does oil pressure look like? If your VTEC solenoid is clicking over, do you see the camshaft rocker pin move at all? Hey I have a jdm b16a ob2a with stock ecu in an ek. It seems like vtec is engaging at but right after it engages it seems to disengage? There is no cel and the oil is topped up.
Hi Justin, have you checked your LSA? Have you cleaned your VTEC solenoid? Problems with either issue can cause VTEC to not work. Check out these guides to help you out. Sorry, are you asking about a project or you are wondering how to connect the VTEC solenoid to your Prelude? This site uses Akismet to reduce spam. Learn how your comment data is processed. Friday, November 12, Sign in. Forgot your password? Get help. Password recovery. My Pro Street.
Like this: Like Loading How to Fix Odyssey Misfire. What is the check engine light. Hi Carter, thanks for commenting. No problem, we have this writeup in our archives and I can have it posted for you.
Thanks for reading. Hi Mo, thanks for reading. Hi Henry, couple of quick questions. Let us know and we can help narrow down the problem. Hi Juam, thanks for reading! I assume your VTEC worked before? Hi Nicole!
Okay couple of quick questions.. Hey Brendan, thanks for reading. Let us know and we can try to help! Thanks for commenting! Let us know and we can try to help you out. Thanks for commenting. Hi, i have honda civic 94 swapped engine with D15b.
Hi Shafat, thank you for reading! Hi Diego! Hi Aldo, wow okay sounds like a complex issue.. Please let us know and we can try to fix your VTEC issue. Hi Mario, thanks for reading! Hi Abbie, thanks for reading! Hi Mauricio, thanks for reading! What we found was a deteriorating gasket. In this situation, I laid the repair options out for the driver. Obviously, replacing the gasket and the VTEC pressure switch would be the lowest cost option.
Then we called the dealership to price these two parts. When the driver decided to go online and shop around they found a complete assembly for less than the cost of the gasket from the local Honda dealership. We're also going to explain the major difference between the variable valve timing systems of a Honda automobile when compared to VVT problems with General Motors cars.
Before we move on let's finish up the story about this Honda Accord. When the customer drove over to the local Honda dealership, he talked to the service department about what the repairs would cost through the dealership. Of course, the service writer wanted to verify the failure before quoting prices. In this article we'll cover some repair tips and talk about the best way to access these components.
Hint, you don't want to go in from the top and you probably want to pull off the wheel to gain access on a CRV. The general or most common Honda VTEC system problems produce symptoms that fall into two major categories. The first one is a failure of the system to engage the high lift, longer duration lobe of the camshaft.
We'll get into how the VTEC system works at the end of this article. For now what we need to understand is the VTEC function is requested by the vehicles main computer. Long story short, the computer energizes the VTEC solenoid and the spool valve.
There are a couple of different codes that set depending on the defect in the system. With that said, the P trouble code is the one I see most often. This trouble code often leads to parts replacement, but still needs diagnosis to determine which one. We'll talk more about this in the diagnostic section below. Another common symptom of Honda VTEC system problems becomes an oil leak that develops slowly, but consistently worsens over time. The VTEC solenoid actually allows oil to flow to the internal galleries of the overhead camshaft.
This means that the housing of the solenoid is holding back full engine oil pressure. In fact, the rubber starts to harden and shrink. When this occurs we start to get a small oil leak. As the deterioration continues, we can even develop cracks in the factory rubber gasket.
Then the oil escapes quickly from the engine at this point. Let's start off with the common Honda check engine light code mentioned in the previous section. This doesn't exactly tell you what's wrong, but we already have a good idea of where to start.
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