You won't find a precise resistance value in a typical repair manual. Instead, the manual might advise against using wires with *excessive* resistance, which would impede spark delivery. Conversely, wires with *too little* resistance could increase RFI.
Instead of searching for a specific resistance value, focus on these steps:
1. Find the correct replacement wires: Use the vehicle's VIN number to look up the correct spark plug wires at a parts store (auto parts store websites are helpful for this). Reputable brands design their wires to meet or exceed the factory specifications for RFI suppression and performance.
2. Check for visual damage: Inspect your existing wires for cracks, fraying, or other damage. This is a more reliable indicator of whether they need replacement than measuring resistance.
3. If you absolutely must measure resistance: Use a multimeter to measure the resistance of your *existing* wires. This will give you a baseline for comparison *only if* you're considering using used replacement wires. Even then, comparing resistance values is not entirely reliable as variations in manufacturing are normal. Significant differences between wires could indicate a problem, but similar readings don't guarantee perfect performance.
In short, replacing your spark plug wires with new, correct-fit wires from a reputable manufacturer is the best approach. Don't get bogged down trying to find a precise resistance specification; that's not the primary way to ensure proper operation.
