Q: Variable tumble control system, not really sure how to pinpoint what I need to do. Someone told me I need a new spark delay valve

asked by on

I'm tying to figure out what exactly I need to make sure my car is running properly

My car has 175000 miles.
My car has an automatic transmission.

There is a Mazda Technical Service Bulletin (TSB) involving the Variable Tumble Control System (VTCS) on your model. The issue in the TSB involved the mitigation of noise caused by the system and that mitigation involved re-programming of the controls. If that is the issue you are experiencing, obviously the applicability of the Mazda TSB should be considered first. What I would recommend is that you seek a diagnostic of the system to pinpoint the root cause of the malfunction that concerns you. To obtain that diagnostic, on a low cost, mobile basis, please use YourMechanic’s Check Engine Light diagnostic service request page and the responding certified mechanic will investigate and resolve the issue that you are writing in about. If you have further questions or concerns, do not hesitate to re-contact YourMechanic because we want you to make the most of your repair dollars and help you to get the best possible results.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Variable tumble control system, not really sure how to pinpoint what I need to do. Someone told me I need a new spark delay valve

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Check Engine light on; transmission leak

The coolant temperature sensor is likely what caused your Check Engine light. Sometimes aftermarket manufacturers produce parts of a lesser quality than the OEM. However, this does not mean that all aftermarket manufacturers produce faulty parts. It is harder to...

Q: Q: will a water pump fail without the temperature light showing?

When a water pump fails, it usually fails by seizing up. It is possible for a water pump to seize up without having any warning lights illuminated. Many times the water pump will make a noise because the bully is...

Q: Why is my key not coming out of the ignition unless I disconnect the battery?

Your issue is very likely related to a component called a "shift lock". It's a switch placed by the shift lever that only allows the key to be removed if the car is in park or neutral. This switch has...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.