Neil Warnock's side remain the only team in the division with a 100 per cent record, in fact they have yet to concede a goal after opening their campaign with a 4-0 win over Barnsley then defeating Sheffield United 3-0. Defeat means the Iron are 16th.
Cardiff City's seven points mean they are second in the table after taking apart Doncaster Rovers at home.
Craig Bellamy, inevitably, inspired the win although he had to wait until the 88th minute to get on the scoresheet himself.
Two goals from Jay Bothroyd set them on their way, with Chris Burke then Bellamy adding gloss to the win.
Burnley also enjoyed a comfortable home win, with Ross Wallace, Chris Iwelumo and Graham Alexander scoring in a 3-0 success over Leicester City.
Coventry City's 2-1 win over Derby County in an early kick-off ensured they also sit in the play-off places, with Lukas Jutkiewitcz and Ben Turner sealing the win.
Ipswich Town are the final team on seven points, having secured an impressive 2-1 win at Crystal Palace. Grant Leadbitter and Carlos Edwards got their goals, with Neil Danns getting a late consolation for the Eagles.
Millwall's winning start to the season was ended with defeat to Leeds United. They had taken the lead after 15 minutes through an own goal from Richard Naylor, but Lloyd Sam levelled before the break and two second-half goals from David Somma secured all three points.
David James continues to spend much of life as a Championship keeper picking the ball out of his own net, after conceding three at home once again. Unlike the opening day, a 3-0 defeat at Ashton Gate to Millwall, his Bristol City side did manage to avoid defeat this time against Barnsley.
Two early goals from Andy Gray looked to have the Tykes on course for an away win, but Marvin Elliot and Albert Adomah ensured the score was level at the break. Adam Hammill put Barnsley back ahead, but David Clarkson's penalty just after the hour mark ensured a 3-3 draw.
Reading thought they were on course to profit from Nottingham Forest's notoriously bad away form when Alex Pearce put them ahead, bit a goal from Robert Earnshaw secured a 1-1 draw. The Royals are still without a league win.
Swansea City were made to pay for a late missed penalty at Norwich City. Had David Cotterill scored converted the spot-kick after 85 minutes the Swans would have gone 1-0 up.
Instead of celebrating the lead, the Welsh side found themselves behind moments later through an own goal from Ashley Williams - who slid the ball home while trying to clear it. Simeon Jackson added a second in stoppage-time to secure a 2-0 result for the Canaries.
Preston North End got their first points of the season thanks to a 1-0 home win over Portsmouth, the former Iron forward Paul Hayes got the goal after 18 minutes.
Hull City and Watford played out a goalless draw at the KC Stadium.