Throttle Position Sensor (TPS)
NOTE:
On RX7, see ADJUSTMENTS
article for TPS specifications.
TPS VOLTAGE - B2200 (PFI), B2600i, MPV (4-CYL.), MX-6 & 626
| RED Wire Voltage |
BLUE Wire Voltage Closed Throttle |
BLUE Wire Voltage Wide Open Throttle |
| 4.50-4.59 |
.37-.54 |
3.58-4.23 |
| 4.60-4.69 |
.38-.55 |
3.66-4.32 |
| 4.70-4.79 |
.39-.56 |
3.74-4.41 |
| 4.80-4.89 |
.40-.57 |
3.82-4.51 |
| 4.90-4.99 |
.40-.58 |
3.90-4.60 |
| 5.00-5.09 |
.41-.60 |
3.97-4.70 |
| 5.10-5.19 |
.42-.61 |
4.05-4.79 |
| 5.20-5.29 |
.43-.62 |
4.13-4.88 |
| 5.30-5.39 |
.44-.63 |
4.21-4.98 |
| 5.40-5.49 |
.44-.64 |
4.29-5.07 |
| 5.50 |
.44-.66 |
4.29-5.17 |
TPS CONTINUITY TEST
| Condition |
Continuity Between IDL & "E" |
| .004" (.1 mm) |
Yes |
| .024" (.6 mm) |
No |
TPS INSPECTION
| Condition |
Continuity Between IDL & "E" |
Continuity Between POW & TL |
| Miata |
| .016" (.4 mm) |
Yes |
No |
| .027" (.7 mm) |
No |
No |
| Wide Open Throttle |
No |
Yes |
| Protege & 323 |
| .004" (.1 mm) |
Yes |
No |
| .039" (1.0 mm) |
No |
No |
| Wide Open Throttle |
No |
Yes |
TPS RESISTANCE
| Application |
Ohms |
| MPV (V6) & 929 (SOHC) |
| Terminals "A" & "D" |
3500-6500 |
| Terminals "B" & "D" |
| Closed Throttle |
300-1000 |
| Wide Open Throttle |
3500-6500 |
| 929 (DOHC) |
| Terminals "A" & "D" |
3000-6000 |
| Terminals "B" & "D" |
| Closed Throttle |
200-600 |
| Wide Open Throttle |
3300-7000 |
TPS ADJUSTMENT TESTS
| Condition |
Continuity Between "C" & "D" |
| MPV (V6) & 929 (SOHC) |
| .02" (.5 mm) |
Yes |
| .028" (.7 mm) |
No |
| 929 (DOHC) |
| .004" (.1 mm) |
Yes |
| .012" (.3 mm) |
No |