Suzuki Mitsubishi SPi Engine ECU Repairs

Type: Mitsubishi Motors
Fits: Suzuki Vitara / Sidekick / Samurai
Fuel: Petrol

Note: This ECU may also fit other models.

This page concerns a petrol Suzuki with a Mitsubishi SPi engine ECU. Repair happens by post, so the unit must leave your hands, but three things stay yours throughout: the decision on repair, the ECU itself and the coding it came with. Sections further down take them in turn.

Where you know your part number, try it beneath your Suzuki model further down. Found or missing, it changes little, because our technical people settle coverage on your actual ECU without guessing.

On our bench, diagnosis precedes any repair, and our quote arrives with the findings. To look by make instead, our hubs cover Suzuki ECU repairs and Mitsubishi ECU repairs.

Part numbers by Suzuki model: Vitara, Sidekick and Samurai

A Suzuki model heads each list, named as parts sellers name it. Under it are the part numbers they give for that car, plus the litres wherever they print a size.

Treat a line as a seller’s description and nothing more; locating the fault remains work for our tests.

Suzuki Vitara

Where sellers name a Suzuki Vitara, they give these numbers.

• 33920-56B7: 1.6 litres
• 33920-56B70: 1.6 litres
• 33920-56B80: 1.6 litres
• 33920-70E10: 1.6 litres
• 33920-71E70: 1.6 litres

Suzuki Sidekick

Parts listings pair a Suzuki Sidekick with the numbers below.

• 33920-56B30: 1.6 litres
• 33920-58B30

Suzuki Samurai

A Suzuki Samurai goes with this number in adverts.

• 33920-80C70: 1.3 litres

The decision stays yours: testing and findings come first

Engine ECUs are our focus, and both garages and owners in the UK post theirs to us. When it lands here, your ECU gets logged and inspected visually, followed by electrical tests, then diagnostics targeted at your fault.

Candidates include voltage regulator trouble, injector driver failure and dry joints, but our measurements on your unit show whether one of those applies.

After that, we send the outcome with a quote. Starting chargeable work takes your authorisation, so going ahead remains your call.

The ECU and its coding stay yours too: repair, refit, warranty

Say yes, and our engineers start on the failed component. They use a microscope and, for rework, kit under temperature control. We employ those engineers and own the premises and equipment, UK-based; overseas processing, outsourcing and subcontracting have no role.

We repair the fault without swapping the unit: your own unit is what returns. Back it goes once it passes final testing, since we count nothing short of that as a finished repair.

As for the original coding, it stays yours as well, because the repair preserves it. Your Suzuki therefore needs no recoding, with the refit running plug and play. A warranty then applies to this one repair: 24-month in term and non-transferable.

Quotes for a Suzuki Mitsubishi SPi ECU

Please contact us through this Repair Form about a quote. The decision stays where it was: anything chargeable still requires your authorisation.

Other makers’ cars come to us too, among them European, Japanese, American and Korean ones, plus vans and 4x4s. For those, begin at Engine ECU Repairs or read What We Repair.

Last comes our Suzuki parts table.

Common part numbers associated with this type of unit