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Driveway Mechanic Series · Parts list

Parts for Check Engine Light: Read the Code, Fix the Cause

Every part and tool from the field guide, with a fit check. Tools have exact part numbers; wear parts are matched by VIN or the old part. Check the fit before you buy.

Back to Check Engine Light: Read the Code, Fix the Cause

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Stores listed for: United States

PARTS + SUPPLIES

Fuel cap (vehicle-specific)

Part no. Stant fuel cap or OE cap, by vehicle application

Used in Gas Cap + Evap

How to check fit No universal number exists. Use the maker's lookup by VIN, or the number on your old part. Look up by year/make/model/engine (or VIN) in the maker's catalog and match the old part: threaded or quarter-turn, vented or non-vented, locking or non-locking. Many newer vehicles have no cap at all. If yours is capless, the cap steps don't apply. Check the funnel and flap, or go to a shop.

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Oxygen sensor (vehicle-specific)

Part no. Bosch direct-fit oxygen sensor, by vehicle application

Used in Replace An O2 Sensor

How to check fit No universal number exists. Use the maker's lookup by VIN, or the number on your old part. Look up by year/make/model/engine (or VIN) in the maker's catalog. Buy direct-fit with the right connector; I skip universal splice-in sensors on a first repair. Match bank and sensor position (upstream/downstream) and the number on the old part. Many new sensors come with anti-seize already on the threads, so I look before I add any. If mine isn't coated, I use only the sensor-safe anti-seize packed with it, on the threads only, never on the tip.

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CRC Mass Air Flow Sensor Cleaner

Part no. CRC 05110 (part no. 1003729), 11 wt oz aerosol

Used in Clean The Maf

How to check fit I read the can label for which sensors it's made for. Spray the sensing elements without touching them and let the sensor dry thoroughly before reconnecting.

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TOOLS BORROW WHAT YOU CAN

Autel AutoLink code reader

Part no. Autel AutoLink AL319

How to check fit 1996+ OBD-II vehicles; engine and emissions only. Reads live PCM data, freeze frame and readiness (I/M) status; clears the light and codes. No ABS or SRS support on this model.

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Innova code reader

Part no. Innova 1000

How to check fit Works only on US/Canada-market vehicles (1996+ in the US), and the Innova app only works in the US and Canada. Check the maker's coverage list for your model year. All-system scan on supported vehicles (check engine, ABS, SRS, transmission), plus live data, freeze frame and emissions check. Reading only: airbag repair is a hard stop.

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BlueDriver Bluetooth OBD2 scan tool

Part no. BlueDriver Bluetooth OBD2 Scan Tool (Pro Next-Gen)

How to check fit Any OBD2 vehicle for engine and emissions features, with a phone app for live data, freeze frame and readiness. Check the maker's page for which systems it reads.

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OTC oxygen sensor socket

Part no. OTC 7189

Used in Replace An O2 Sensor

How to check fit 7/8 in (22 mm) hex opening, 1/2 in drive, slotted for the sensor wire. Check the hex size on your old sensor before you buy.

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Lisle oxygen sensor thread chaser

Part no. Lisle 12230

Used in Replace An O2 Sensor

How to check fit M18 x 1.5 oxygen-sensor threads. Match the thread on your old sensor before you buy; some sensors are M12.

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TEKTON 3/8 in drive electronic torque wrench, 10–100 ft-lb

Part no. TRQ81122

How to check fit Covers lug-nut, plug and sensor ranges on most cars; torque to the maker's number. Parts stores often lend one against a deposit.

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Big Red 3-ton jack stands, one pair

Part no. TAM43002A

How to check fit Rated 3 tons per matched pair (6,000 lb), one end of the vehicle only. Check your car's weight in the owner's manual.

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Fit notes are guidance, not a guarantee. Confirm with your VIN, the old part or the maker's catalogue before you buy. Prices and stores change. Edition 5.0 · 2026-10-07