BORIS Johnson has vowed to continue to fight for a tunnel to appease residents threatened by HS2 despite engineers saying it would be too costly.
The Conservative incumbent London Mayor made the promise when he visited Greenford Broadway on Wednesday afternoon as part of his re-election campaign.
High speed rail opponents in Ealing were left disappointed in January when neighbours in Ruislip won a tunnel which stops at the Northolt border.
Mr Johnson said: "I've got a part of the tunnel already and I'm going to keep fighting for the whole route through London. They said they couldn't afford it for Ruislip but we got it. I'm going to fight for Ealing."
Followed by a crew of Back Boris ambassadors, he spoke to crowds of shoppers and traders while many pulled out their digital cameras and smart phones to get a snap with the celebrity mayor. And he popped into the Cancer Research charity shop and purchased a romantic novel.
At a transport meeting held at Greenford Hall last year, he agreed to look into reinstalling the unfinished lift at Greenford station.
Confronted by the unfulfilled promise, he said: "I'm fighting against the crazed plans from Ken Livingstone to cut fares which would make it impossible to deliver that kind of thing not just for Greenford but elsewhere in the city. If we can do it in the most cost effective way then we will."
Mr Johnson said he has helped push crime down across the capital - by 25 per cent overall in Ealing - in his four years in term and is committed to getting more police on the streets after enlisting 1,000 extra bobbies.
Although more than half of Ealing Police were deployed elsewhere on the night of the riots, he said: "It is working.
"There was the tragic death in Ealing during the riots but overall murder is down by 25 per cent, bus crime, which is a real issue in Ealing and main parts of outer London, is down by 33 per cent. Overall crime is down by 11 per cent."
Another key pledge is to continue investing in outer London to boost local economies. The two-day weekly market launched in Greenford this month was powered by £128,000 from the mayor's £50million Outer London Fund following the riots, and another £500,000 has been invested in Acton town centre.
Mr Johnson's number two, Richard Barnes, who represents Ealing and Hillingdon on the London Assembly, also hopes to secure his seat at the elections on May 3.
He said: "It's a joy to be working with Boris. We've had a very successful last four years and we're going to build on that. The biggest thing is we want to get 200,000 new jobs in London not just for young people."
