Haas are hoping to find the “little gremlins” that saw the team rack up three on-track stoppages at the Circuit de Catalunya.
Test driver Pietro Fittipaldi and Romain Grosjean both suffered from a stop-start kind of day as niggly problems continue to prevent the VF-19 from piling up the miles uninterrupted.
Haas are still getting laps on the board, with Fittipaldi contributing with 48 laps on Wednesday morning and Grosjean adding 69 in the afternoon.
But they are not being able to fully maximise the testing sessions.
“It’s annoying more than frustrating, the car has good potential, the drivers like it, we just need to sort out these little gremlins,” said Steiner in Barcelona.
“We just need to find what causes it. We still have time to find it, therefore I am not too desperate.
“I’m not liking it, to be honest, I could do without it, but still it is nothing to be desperate about, we will fix it.”
UPDATE – @RGrosjean will drive in Thursday morning’s session as a result of his lost track time at @Circuitcat_eng today. @KevinMagnussen will drive as scheduled in the afternoon. #F1Testing #VF19 #RichEnergy #HaasF1 #F1 pic.twitter.com/CqVk1rtyMJ
— Haas F1 Team (@HaasF1Team) February 20, 2019
Grosjean, who finished day three in P7 and is back in the car again on Thursday as part of a driver reshuffle, is still in good spirits.
“It’s not been a bad day to be fair,” Grosjean said via the official Haas website.
“Yes, we came back a couple of times on the flatbed truck having had to stop the car on track, but that’s part of testing, it’s finding out what the limitations are, and what we can do better on the car.
“It’s not ideal, and we’d like to do more mileage, but the more we drive, the more we find the car is getting better. The feeling in the car is good.
“Positive steps have been made since I ran on Monday, and I was already happy then, I’m even happier now. We’re getting there.
“I’m quite pleased with all the work that’s been done.”