How to test and replace an Ignition Coil on a Toyota MR2?

Remove cable of negative terminal of battery and HT wire of ignition coil. For ascertaining the primary coil resistance, it is required to put probes of ohmmeter at both positive and negative terminals and the obtained reading should be in the range of 0.5 to 0.7ohm. For secondary coil resistance, place the meter between the positive terminal and the high tension terminal, should read from 11,000 to 16,000 ohms. If primary or secondary circuits are not above these specifications, replace the coil. Disconnect the wires of the igniter, and unscrew the bolts holding the coil bracket as well as the coil. Disconnect the coil from the igniter; then, join the new coil with the old igniter. Lastly, installation also takes place in the inverse sequence to the removal.

Genuine Toyota MR2 Ignition Coil

Ignition Coil Resistor

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4 Ignition Coils found

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Toyota MR2 Ignition Coil Assembly
Part Number: 90919-02113
$78.10 MSRP: $110.10
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Product Specifications
- Other Name: Coil Assy, Ignition; Coil, Ignition Coil
- Replaces: 90190-02190, 90919-02190
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1985-1989 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L | 4AGELC, 4AGZE; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJMQRA, AW11L-WJMQRK, AW11L-WJPQFA, AW11L-WJPQRA
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Toyota MR2 Ignition Coil Assembly
Part Number: 90919-02163
$107.84 MSRP: $152.01
You Save: $44.17 (30%)
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Product Specifications
- Other Name: Coil Assy, Ignition; Coil, Ignition Coil
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1992-1995 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA
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Toyota MR2 Ignition Coil Assembly
Part Number: 90919-02197
$104.77 MSRP: $147.69
You Save: $42.92 (30%)
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Product Specifications
- Other Name: Coil Assy, Ignition; Coil, Ignition Coil
- Manufacturer Note: CALIFORNIA SPEC
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1990-1995 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA
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Toyota MR2 Ignition Coil Assembly
Part Number: 90919-02185
$122.25 MSRP: $173.80
You Save: $51.55 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Coil Assy, Ignition; Coil, Ignition Coil
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1990-1993 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA

Toyota MR2 Ignition Coil

The Toyota MR2 Ignition Coil converts normal battery 12 volts into 15,000 to 40,000 volts to jump the spark plug gap and ignite the air fuel mixture in each cylinder. Within the Ignition Coil, two insulated copper windings perform a special role along with a laminated iron core. The low-voltage circuit, containing several hundred turns of thicker primary wire, does its job. The magnetic field collapses and high voltage is generated due to many thousands of turns of finer secondary wire on the coil winding. The battery current passing through the primary on a Toyota MR2 creates this magnetic field. When the trigger device interrupts the flow, some of the energy is transferred to the secondary winding, where it exits the high-tension tower onto the distributor or plug lead. The Ignition Coil casing, made of plastic and epoxy, shields the windings from heat and vibration. A poor Ignition Coil can cause a misfire, a rough running engine, or a no-start condition. You can verify the Ignition Coil's health using resistance readings or scope patterns. The Toyota MR2 ignition system has an essential component called the Ignition Coil which generates high-voltage deliveries and primarily contributes to Toyota MR2 performance.

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Toyota MR2 Ignition Coil Parts Questions & Experts Answers

Ignition Coil Assembly
90919-02113
Q: How to test and replace an Ignition Coil on a Toyota MR2?
A:
Remove cable of negative terminal of battery and HT wire of ignition coil. For ascertaining the primary coil resistance, it is required to put probes of ohmmeter at both positive and negative terminals and the obtained reading should be in the range of 0.5 to 0.7ohm. For secondary coil resistance, place the meter between the positive terminal and the high tension terminal, should read from 11,000 to 16,000 ohms. If primary or secondary circuits are not above these specifications, replace the coil. Disconnect the wires of the Igniter, and unscrew the bolts holding the coil bracket as well as the coil. Disconnect the coil from the igniter; then, join the new coil with the old igniter. Lastly, installation also takes place in the inverse sequence to the removal.