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Blue metal canister kit with gauge, hoses and fittings in black case

Firstinfo Tools Co., Ltd.

Firstinfo Tools Co., Ltd. 4-in-1 Engine Service Kit

SKU CH-FYS9-37M8Y

A 4-in-1 kit that cleans intake valves, combustion chambers and vacuum systems, then tests vacuum pressure with a liquid-filled gauge for petrol engines

  • Product typeEngine Service
  • Cleans intake valves, combustion chamber and vacuum system in one kit
  • Tests vacuum pressure accurately with liquid-filled gauge
  • Boosts fuel economy by removing carbon deposits
  • Simple operation: add reagent and connect to vacuum line
  • Designed for petrol engines only, not diesel injectors

4-in-1 Engine Service Kit

The Firstinfo 4-in-1 Engine Service Kit combines intake valve cleaning, combustion chamber cleaning, vacuum system cleaning and vacuum pressure testing in one unit. It connects directly to the vacuum line and uses a liquid-filled gauge to monitor chemical flow and vacuum levels. The kit is designed for gasoline and petrol engines only and is not suitable for diesel injectors. It helps improve fuel economy through thorough carbon deposit removal.

Petrol engine maintenance only

This kit suits mechanics and DIYers who need a single tool for carbon cleaning and vacuum diagnostics on petrol-powered vehicles. It is not for diesel engines, so workshops that service diesel injectors cannot use it. Buyers who require a dedicated fuel injector cleaning machine or a smoke leak detector should look at alternative equipment. The liquid-filled gauge supports accurate pressure monitoring during service.

Liquid-filled vacuum gauge

The integrated liquid-filled gauge delivers accurate vacuum readings while allowing the operator to watch chemical flow in real time. This single specification determines whether the kit can verify vacuum integrity and control solvent delivery during the same procedure. If a workshop relies on a separate digital manometer or needs data logging, this analogue gauge will not meet that requirement.

How it compares

Measured against everything we stock in Custodial Supplies & Trash Liners, at today’s prices. Recalculated every night.

Price $61.99
Pricier than about 75% of the 1,313 comparable items (median $26.99).

Specifications

Product
Product typeEngine Service

Questions about this item

Which Firstinfo 4-in-1 kit version should I choose for petrol-engine maintenance?

This single kit combines intake valve cleaning, combustion chamber cleaning, vacuum system cleaning and vacuum pressure testing for gasoline engines only.

What does the liquid-filled gauge actually show while I am using the kit?

It gives a live vacuum reading so you can watch the chemical flow and confirm the system holds pressure during each cleaning step.

What vacuum-line connection does the kit use and what pressure range does it cover?

It connects directly to the engine vacuum line; the liquid-filled gauge reads the vacuum level generated by the running petrol engine during cleaning and testing.

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