SAIPA Aria

SAIPA's crossover, on the same SP100 platform as the Shahin saloon and the tallest thing the company has developed in-house. It carries a single engine — a two-litre naturally aspirated four with direct injection, the 4J20V, built under licence from Mitsubishi — and the direct injection is the real departure for this range, not the turbocharging the car was expected to get and did not. That changes the diagnostic picture in a specific way: a high-pressure fuel pump and its own rail, injectors that carbon at the tip rather than at a port, and intake valves with no fuel washing over them, so deposits there are a routine finding rather than a fault. Everything else follows the family: standard diagnostics over a conventional connector, coil-on-plug ignition whose units fail individually, and fuel-quality sensitivity at the pump strainer and the injectors.