13 - Exhaust Restriction

13. Exhaust Restriction

Purpose:

Exhaust Restriction:

To determine if the exhaust system is sufficiently restricted to cause a performance problem.

Recommend Procedure:
Use NGS Tester PID EBP. An EBP reading above 234 kPa (34 psia) indicates a restricted exhaust condition.
- Disconnect wiring at EOT.
- Run engine at Wide Open Throttle (WOT).
- Read EBP on NGS or DVOM.

Possible Causes:
- Collapsed tail pipe
- Clogged tail pipe
- Closed exhaust back pressure device
- Clogged catalytic converter
- Damaged muffler

Tools Required:







- New Generation Star (NGS) Tester 007-00500 or equivalent