MajorCommonEngine

Honda Integra: VTEC solenoid screen blockage (B18C and K20A)

VTEC solenoid screen blockage (B18C and K20A) is a common engine fault on the Honda Integra on the 1993–2006 cars, and we rate it major. Putting it right costs ≈A$140 to ≈A$410 at independent workshop rates, shown as an approximate guide in Australian dollars. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 13 documented faults on the Honda Integra.

Vehicle: Honda Integra
Engine: B18C / K20A
Years: 1993–2006
Fuel: petrol
System: Engine

This page covers the Honda Integra as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Honda Integra faults13 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph for this fault yet. We would rather show none than show a picture of something else.

What goes wrong

Both the B18C (DC2 1993-2001) and K20A (DC5 2001-2006) engines use a VTEC oil pressure solenoid with a fine mesh screen that captures sludge from infrequent oil changes, blocking oil flow to the VTEC mechanism. Results in loss of high-rpm power and VTEC pressure fault codes. Particularly consequential in performance engines regularly driven to redline. A universal Honda VTEC failure on service-neglected units across both DC2 and DC5 generations.

What you would notice

Engine falls flat above 5,800-6,000 rpm instead of pulling hard through to redline
Check engine light with VTEC oil pressure codes P2646, P2647, or P1259
Inconsistent or absent VTEC engagement point
Oil pressure warning light in severe screen blockage cases

How to check it

Where to look. VTEC solenoid on the cylinder head, accessible from top of engine on both B18C and K20A

Scan for VTEC oil pressure DTCs.
Check oil condition and full service history.
Test drive and verify VTEC engagement occurs cleanly at the correct rpm point.
If a workshop inspection is possible: Remove and inspect the VTEC solenoid screen for sludge accumulation.

What it costs to put right

≈A$140 to ≈A$410 at independent workshop rates, shown as an approximate guide in Australian dollars. That is for this job on its own, not for the car.

An estimate, converted to Australian dollars, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

“Has the VTEC solenoid been cleaned or replaced?”
“What is the oil change interval and what oil specification is used?”
“Any loss of power at high rpm or check engine warning lights?”

Now check the Honda Integra you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car still has money owing on it, has been written off or reported stolen, what kms it showed in past sale ads, whether it has had accident repair claims and what it is worth today. That comes from the official records for that plate. Enter the plate and its state for the A$17.90 Vehicle Check, or the full history from A$24.99.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Honda Integra buyer questions

Is vtec solenoid screen blockage (b18c and k20a) serious on a Honda Integra?

We rate it major and common on the Honda Integra. Both the B18C (DC2 1993-2001) and K20A (DC5 2001-2006) engines use a VTEC oil pressure solenoid with a fine mesh screen that captures sludge from infrequent oil changes, blocking oil flow to the VTEC mechanism. Results in loss of high-rpm power and VTEC pressure fault codes. Particularly consequential in performance engines regularly driven to redline. A universal Honda VTEC failure on service-neglected units across both DC2 and DC5 generations.

How much does it cost to fix on a Honda Integra?

≈A$140 to ≈A$410 at independent workshop rates, shown as an approximate guide in Australian dollars. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Honda Integra years are affected?

Our research records this fault on the 1993–2006 Honda Integra. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Scan for VTEC oil pressure DTCs. Check oil condition and full service history. Test drive and verify VTEC engagement occurs cleanly at the correct rpm point. If a workshop inspection is possible: Remove and inspect the VTEC solenoid screen for sludge accumulation. Look here: VTEC solenoid on the cylinder head, accessible from top of engine on both B18C and K20A