Distributor Pickup Sensor J825 — Mazda Protege
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Specifications
Numbers the manufacturer's catalogue lists next to this part, grouped by maker. The OE unit's maker comes first. The catalogue does not always state what a number is: it may be the part's own marking or the number of the distributor it fits into.
| Mitsubishi | J825 T2T52471 |
| Configuration | Distributor pickup sensor (no igniter) |
Which cars it fits
Each row is a separate version as listed by the manufacturer. Years are quoted exactly as the source states them and do not form one continuous compatibility range.
| Car | Body | Engine | Years |
|---|---|---|---|
| Mazda Protege | — | 1.8L 1839CC | 1990-1994 |
| Ford Escort | — | 1.8L | 1991-1995 |
More than one part number for the same car
For the cars below the manufacturer's catalogue lists further parts covering other engines, bodies or production periods. Compare with your car's row in the table above — and mind the configuration: the list mixes sensors and standalone modules.
Mazda Protege
| Part no. | Configuration | Body | Engine | Years |
|---|---|---|---|---|
| TIS244 | Pickup sensor | — | 1.8 L, 1.5 L | 1997-1998 |
Ford Escort
| Part no. | Configuration | Body | Engine | Years |
|---|---|---|---|---|
| TIS222 | Ignition module | — | 1.8L 112Cu | 1991-1995 |
If your engine or year matches more than one part number, send a photo of the removed part and we will check the marking.
If the removed part carries a different number
Besides the OE numbers in the specifications, other numbers turn up next to this part — and they do not mean the same thing. Below is what each of them stands for.
The distributor it fits into
This is the number of the complete assembly, not of the part itself. If you are searching by it, what you need is the component that goes inside that distributor, not the distributor itself. Source: TIS catalogue.
- T1T49171
What to check before ordering
- The marking stamped on the removed part: a J, RSB or OE number.
- The number on the complete distributor, if it is legible.
- The connector pin count and the mounting shape.
- The engine, model year and body code of the car.
Send a photo of the part along with these details and we will tell you which part number fits.
Description
TIS-221 — distributor pickup sensor for Mazda Protege, Ford Escort, 1990–1995. Replaces Mitsubishi J825.
What it is and where it sits. A round base plate with a central bore for the distributor shaft. It mounts inside the distributor, under the cap and rotor. A sensing element sits on the plate and a slotted disc on the shaft interrupts the gap between the element and its counterpart, so the unit outputs a square-wave signal. In this class of parts the sensing element may be an optocoupler (an LED facing a photo receiver) or a Hall element; a photo of the assembled unit does not establish which, so we do not claim it for this part number. “Hall sensor” is the market name the unit is searched and sold under.
This is not a crankshaft position sensor (CKP) mounted on the engine block near the pulley. The distributor is camshaft-driven and turns at half crankshaft speed. Catalogues list the same part as an ignition module, igniter or distributor Hall sensor.
How it works. The sensor sets the timing but does not create the spark: its pulses go to the ECU and the igniter, which switches the coil primary.
Symptoms that point to this unit. The engine cranks well but never fires — with the signal lost the ECU can cut both spark and injection. Unstable idle, jerking under acceleration and stalling may indicate a broken signal: an oiled slotted disc, a degraded sensing element or a worn shaft bushing. Reddish dust inside the distributor is a reason to inspect the bushing. The coil, the wiring and the fuel system produce the same symptoms, so a symptom alone does not prove this sensor has failed.
Before replacing. The manufacturer does not publish supply voltage, signal levels or pinout for these part numbers, so we quote no figures — take them from the wiring diagram or service manual for your engine. Without a specification, check the rest: a clean and undamaged slotted disc, shaft bushing play, the connector and the wiring. The signal itself is best viewed on a scope — at a steady speed the pulses should be uniform, with no gaps. Rule out the coil and the wiring before replacing anything.
Part numbers: J825 · TIS221 · TIS-221 · T2T52471 · T1T49171.
Every TIS sensor passes high-temperature durability and thermal-shock testing, plus a 100% performance check before packing. The Taiwan Ignition System Co., Ltd. factory is ISO-9001 certified and builds to OEM specifications.
