Question about 1998 Toyota Celica
Cant accelerate hard without cutting fuel supply
The turbo never "engages". The turbo spins all the time, but the amount of exhaust gas driving it is adjusted by the wastegate.
The problem you are experiencing could be due to the wastegate's vacuum tube being disconnected. The wastegate is meant to open as the inlet manifold pressure increases, so that the turbo spins less and doesn't compress the air too much. It could also be the result of a faulty sensor, but check the vacuum tubes first. Your wastegate actuator is fitted just behind the turbo. If the pipe has come off recently, you should be able to see a clean section where it's meant to be joined to the actuator. The disconnected pipe should be fairly close by. Again, the pipe should be connected to the inlet manifold though from memory I think this is one of the difficult to reach pipes on the back of the engine.
As a side note, the turbo guage on the dashboard is very poor. Even if only for the sake of diagnostics, you should get a cheap direct vacuum driven guage.
Posted on May 17, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Sep 01, 2015 | Ford Cars & Trucks
Jul 01, 2014 | Cars & Trucks
Apr 16, 2011 | 1986 Ford Thunderbird
Dec 03, 2010 | 2004 Jeep Grand Cherokee
Apr 08, 2010 | 2003 Nissan Pathfinder
Dec 13, 2009 | 2001 Volkswagen Golf
Aug 24, 2009 | Mercedes-Benz E320 Cars & Trucks
Jul 18, 2009 | 2004 Jeep Liberty
Jul 04, 2009 | 1991 Lexus LS 400
213 people viewed this question
Usually answered in minutes!