Turbo Cleaner

MON - FRI 8.30AM - 5PM

0871 288 7125


Your engine management and maybe even your transmission is controlled by the ECU. As you know, all computers crash, all software has bugs, and mechanical equipment fails. As such, many ECU units are fitted with a 'limp home mode'. When it detects that something semi-serious is wrong, it enters the limp mode, which means that the engine won't rev beyond a pre-programmed speed, you can't accelerate very fast, or you may indeed be speed-restricted to 40 mph or similar. The transmission may even stay in one or two gears. Bad? Well, no, not really: The alternative would be to either let you drive at regular speeds, with the danger of letting you trash your car (expensive repair, means happy repair people, but angry driver), or stopping you from going anywhere (expensive recovery and stranded on the side of the road means happy recovery company, but angry driver).

Common Limp Home Mode Questions:

  • Why has my diesel lost all power?
  • Why won't my diesel rev past 3000 - 4000?
  • Why can't I go quicker than 30 - 40 mph?
  • My check engine light is on (will also flash)

The car's computer is constantly monitoring sensors such as air flow, EGR flow, fuel flow, etc., and is expecting certain values. If a sensor sends a signal that is "out of bounds" through malfunction or failure, the car's computer will fall back to a safety map or cut fuelling and turbo boost to prevent damage. This is because over boosting or over fuelling could cause engine damage. A diesel is built sturdier than a petrol engine and boost spikes are normal in a diesel. Even still, any engine has limits so the computer pulls back engine power to prevent these limits from being exceeded.

Symptoms of Limp Mode:

  • Slow acceleration
  • Engine wont rev beyond a pre-programmed speed (usually 3000 - 4000 revs)
  • Speed restricted to 40mph or similar
  • Bad/sticking VNT actuator or turbo vanes
  • EGR or exhaust leak can also cause limp mode
  • If the fuel filter has not been changed in the last 20,000 miles, it is possible that it is clogged and is restricting fuel
  • It could be the MAF air flow sensor contributing to the problem although this normally isn't the sole cause
  • The intake is more than likely clogged with carbon and that is causing the limp mode

Diesel Turbo Cleaner is designed to cure limp home mode and with easy to follow instructions, it will save you £100's - £1000's on garage bills, so for only £49.99 give it a try and you will be surprised with the results.

Limp Home Mode

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Why Diesel Turbo Cleaner?

Diesel Turbo Cleaner is a specially designed set to solve problems of diesel engines in a fast and efficient way such as contamination and seizing of the variable geometry of turbos and catalysts caused by carbon residues. Ideal for all diesel engines with Variable Vane Turbos.

Keep in Touch

Diesel Turbo Cleaner, Automotive Brands Building, Unit 30, Bidavon Industrial Estate, Bidford-Upon-Avon, Warwickshire, B50 4JN



Cars, vans, trucks and boats are relied on every day to keep a company running, many work vehicles such as vans and trucks have turbochargers which need to be maintained to keep them running efficiently. Don't run the risk of company downtime, talk to us today about trade and we could just save you a fortune.