Thinking about buying a used Honda Acura RSX (1993–2006) in New Zealand? We've documented 5 known faults for this model spanning engine, transmission, and fluid leaks. Each researched and verified before it's published. The most serious issues here are rated critical. Two are set out in full below — the rest, with the symptoms, repair costs and checks for each, are free with an account.
5
Documented faults
Critical
Most serious
$400–$700
Typical repair
3
Systems covered
Known Honda Acura RSX faults
Every fault below is documented specifically for this model — researched and verified before it’s published.
The K20A 2.0L Type R engine has an oil pump pickup screen that becomes clogged by sludge from infrequent oil changes or incorrect oil specification, causing oil pressure loss at high rpm. On a performance engine that revs to 8,500 rpm, oil starvation causes rapid catastrophic bearing and connecting rod damage. Extensively documented in DC5 Type R communities, particularly on track-used or maintenance-neglected examples.
Symptoms to notice
Oil pressure warning light illuminating under hard acceleration or sustained high rpm
Knocking or rumbling from the bottom end under load
Oil pressure loss at normal operating temperature under performance driving
Catastrophic engine failure in advanced or unaddressed cases
What to check
Check oil condition and verify change interval records – look for evidence of extended intervals or incorrect oil specification. Listen for bottom-end knock under load. Verify oil pressure warning light extinguishes immediately on cold start. On high-km or track-used examples, consider oil pan inspection.
Where to look: Oil pump pickup screen at the base of the engine sump
Ask the seller
“What is the oil change interval and what oil grade and specification is used?”
“Has the engine ever shown an oil pressure warning light?”
“Has this car been used on track or driven hard at high rpm regularly?”
“Any bottom-end knock or unusual noise under hard acceleration?”
02VTEC solenoid screen blockage (B18C and K20A)
MajorCommonEngine $150–$450 to fix
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.
Symptoms to 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
What to check
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.
Where to look: VTEC solenoid on the cylinder head, accessible from top of engine on both B18C and K20A
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?”
EngineCritical
TransmissionMajor
Fluid LeaksMajor
3 more documented faults on the Honda Acura RSX
Symptoms, what to check, where to look and what to ask the seller — for every fault above. Free with an account, no card needed. One account covers one vehicle, so make it the car you’re actually looking at.
This page covers the model. Enter the plate of the actual car you’re looking at and see its year, engine, safety rating and register flags — free, no account needed.
Like any used car, it depends on the specific example and its service history. Across the 5 documented faults for the Honda Acura RSX, the recurring problem areas are engine, transmission, and fluid leaks. A Honda Acura RSX with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.
What are the most common problems with a used Honda Acura RSX?
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We've catalogued 5 known faults for the Honda Acura RSX, covering engine, transmission, and fluid leaks. Two are written out in full on this page. The rest — with the symptoms to notice, what to inspect, and typical repair costs for each — are free once you create an account.
How much do repairs cost on a Honda Acura RSX?
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Most single repairs on the Honda Acura RSX fall between $400–$700 at NZ independent-workshop rates. Some of the 5 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.
Should I get a pre-purchase inspection on a Honda Acura RSX?
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Yes. A Honda Acura RSX inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection plus a market valuation and negotiation figure for $17.90 far less than the cost of missing one of the faults on this page.