A goalkeeping master-class from Wayne Hennessey prevented Rangers from rounding off a near-perfect week with victory at Loftus Road.
The Wolves custodian ultimately proved to be the difference in W12, on an afternoon when the R's again showed signs of a return to form following a poor run of results that had seen them slip to the foot of the Championship.
Hennessey - the Welsh international goalkeeper - twice denied R's skipper Martin Rowlands, while strong appeals for a second half penalty, when Marc Nygaard was dragged to ground, fell on deaf ears.
Luigi De Canio made three changes from Tuesday's winning trip to Turf Moor.
Scott Sinclair dropped to the bench and was replaced by Rowlands, while Rowan Vine and Adam Bolder (both suspended) made way for Dexter Blackstock and Akos Buzsaky respectively.
Wolves boss Mick McCarthy named an unchanged side, which meant former Southend United hot-shot Freddy Eastwood had to make do with a place amongst the substitutes.
After a tentative opening from both sides, it was Rangers who spurned the first opportunity of the match in the 18th minute.
Gareth Ainsworth's innocuous looking through ball found Blackstock, whose thunderous left footed drive was deflected wide for a corner.
Provider turned opportunist moments later, as Ainsworth forced Hennessey to gather the ball at his near post, after the midfielder sent a dipping 30-yard half volley on target.
Hennessey had to be at his agile best again in the 33rd minute, as Rowlands drove from deep before seeing his arrowing right foot drive tipped wide by the overworked Wolves custodian.
Rangers were in the ascendancy by now and Blackstock should've capped their improved display with the opening goal of the game a minute later.
Ainsworth got to the by-line with a typically bustling midfield run, but when his pull-back landed at the feet of the former Southampton ace, he somehow fired wide from little more than four yards.
Hennessey was by far the busiest player on the park, diving low to his left this time to deny the lively Rowlands from range.
The R's had a goal disallowed for a foul five minutes before the break, when Blackstock was adjudged to have climbed on his man as he headed back across goal to set up Ainsworth for an easy tap-in.
Blackstock was back in the groove on the resumption to the second half, capitalising on Darren Ward's defensive slip before sending a fearsome 25-yard strike wide of Hennessey's right hand upright.
Wolves' defensive frailties were there for all to see, with Stewart heading down and over, after he was gifted time and space to meet Buzsaky's 53rd minute set-piece.
The R's continued to force the initiative and they were denied what appeared to be a stone wall spot-kick three minutes later, when Nygaard was dragged to ground right in front of the referee by Kevin Foley.
Rangers players appealed as one for the decision, but referee Mr Graham was unmoved.
After being totally over-run by their hosts, Wolves finally found their feet as the clock ticked towards the hour.
Stephen Ward's flicked header was well saved by Lee Camp, while the outstanding Stewart was twice on hand to head clear the danger on the edge of his six-yard box.
Stewart and his fellow defenders were powerless to stop Stephen Elliott moments later, but thankfully for the R's, the attacker fired wide with the goal at his mercy after Foley's cross fizzed across the face of the six-yard box.
It was one of the misses of the season from the Wolves front-man, to the relief of a Rangers side now struggling to contain the free-flowing visitors.
But it was Rangers - buoyed by the battling qualities of Ainsworth - who finished on the front foot.
Hennessey's cameo display in the Wolves goal continued, as he dived full stretch to tip over Rowlands' fierce drive.
Sensing the Wanderers' back four were tiring, De Canio introduced Sinclair in the final ten minutes, but it was that man Ainsworth who went closest to breaking the deadlock, when he lashed a right footed pile-driver wide in the 85th minute.
QPR: Camp, Barker, Stewart, Blackstock (Sinclair 83), Buzsaky, Ainsworth, Rowlands, Malcolm, Rehman, Nygaard, Leigertwood.
Subs: Cole, Moore, Walton, Balanta.
Wolverhampton Wanderers: Hennessey, D Ward, Collins, Olofinjana, Henry, Bothroyd (Keogh 88), ard, Elliott, Gibson, Foley, Gray.
Subs: Ikeme, Edwards, Jarvis, Eastwood
Referee: Mr F Graham
Attendance: 13, 482
