Sponsored
Wouldnt Rev after starting
- Thread starter KillxPoint
- Start date
- Watchers 49
OP
OP
KillxPoint
Well-Known Member
- Thread starter
- #527
@Dannyvandelft since we are name calling your re like one of those special liberals that even when your wrong you will hold your secrets till death. Have a Supra day! ?
Dannyvandelft
Well-Known Member
I WILL have a Supra day, because out of the 2 of us, I'm the only one with a Supra ?
I'm not even going to start about politics, because then this nonsense will never end.
OP
OP
KillxPoint
Well-Known Member
- Thread starter
- #529
Agreed! Finally something we agree on. And to be honest i do envy you because i still miss my supra but overall glad with my redeye. Later! Until we agrue again ?
Motorknut
Well-Known Member
Pardon if I missed updates, there are a lot of name calling posts clogging up this thread. I think OP has a genuine issue and the rest of us could too.
@pr0jekt_cha0s @bonomo53
Did either of you get any information from Toyota?
I’ve been having intermittent long crank start ups since day 1, every 2 months or so. I had just assumed it was due to infrequent use, and my car is parked for up to a week sometimes.
But I’ve owned the car long enough now to know it’s not normal. Also, since the safety recall programming, my car started exhibiting throttle/rev hesitation. This happens within 5-10 mins of start up. Moving off from a standstill, and you can feel the car won’t move. Typically, letting off and trying again resolves it. But the long crank then worsened recently to requiring up to 6 seconds before firing up. I picked up HPFP info codes with BimmerLink but this only comes up after the crank start up problem, not the power loss incidents.
The throttle/rev hesitation is getting worse now, moving off on a slope saw the power cut off for 5 seconds. I was floating into moving traffic, kept releasing and trying the pedal repeatedly. Finally power just kicked in. I also know this is nothing to do with any supposed “cold start protection”, cos I had driven a good distance, stopped for gas, then started up to head home. I was also not revving hard - generally 2-2500rpm to move off.
I haven’t had a chance to try disabling VSC during the throttle hesitation. Mainly cos I’m busy trying not to get smashed into while I have no power. But I really wonder if all these issues cited across multiple threads are linked to an HPFP issue, or some bigger software issue.
OP
OP
KillxPoint
Well-Known Member
- Thread starter
- #531
Did you take it in for the recall notice? Not sure if your vin is one of the effected cars. Still would document whats going on with a video to show the techs so they can determine what's going on.
Dannyvandelft
Well-Known Member
The throttle thing is across multiple BMW platforms. It holds power for some reason for a few seconds. It is normal, even though it feels weird. No idea what triggers it, it was thought it was a cold start protection, but it's not. It happens during hot starts too. It's like a soft limiter, and you have to push the throttle through it to get going.
As far as your battery, lots of Supra's had battery problems from sitting too long at dealerships. An occasional drive doesn't charge it enough. Get a charger and fully charge the car. Then plug it back in if you're not driving for a week or more. Mine is a daily, but stored over the winter. I use a CTEK charger, and it's perfect come March.
Last edited:
Motorknut
Well-Known Member
Yes, I sent it in for the recall. I have a 2020 unit. Also have videos from the dash cam showing how the car wouldn’t move off a slope (interestingly enough, the car never slipped back. Just wouldn’t move). That clip is the only reason I could push back on them trying to return me the car saying no faults could be found.
And now, I have another video trying to exit the gas station and the car just crawled like it ran out of gas, then the sudden power restoration.
Don’t have any footage of the dash, unfortunately. But I’m told I can set up sensor logging in BimmerLink so I’m gonna give that a go.
Motorknut
Well-Known Member
With all due respect , it’s not normal. I’ve owned 4 BMWs, driven several MINIs and this supra is my 2nd car with a bmw turbo engine. What I am experiencing, is not normal. It isn’t normal to see the revs bounce between idle and 1500 with no movement while trying the throttle. Neither is it normal to have no response for 5 seconds.
I thought the initial instances were just a problem with my pedal modulation, but I now know there is an underlying issue. It doesn’t help to throw these claims that “it’s normal for a BMW” without understanding exactly what the poster is experiencing. There are some bmws where you have to give it a little more before it gets going. Could be throttle adaptation, etc. this is not that.
Dannyvandelft
Well-Known Member
Go on the BMW forums. Multiple threads saying the exact same thing. I do know what you, and he are experiencing, because mine does it too from time to time. Maybe once every 20 starts or so, it won't rev after start-up or it has the hesitation at the light. As soon as you get going, it's normal again. As described in the manual.
Motorknut
Well-Known Member
[QUOTE="Dannyvandelft”]
Go on the BMW forums. Multiple threads saying the exact same thing. I do know what you, and he are experiencing, because mine does it too from time to time. Maybe once every 20 starts or so, it won't rev after start-up or it has the hesitation at the light. As soon as you get going, it's normal again. As described in the manual.
[/QUOTE]
For the benefit of other members with throttle hesitation issues : i haven’t seen anyone else say this behaviour is normal. no one at the dealership has tried to claim what I experienced in my car is normal either.
I have run sensor readings and it shows that the pedal has been depressed but fuel pressure drops slightly below idle level along with the RPMs, and suddenly shoots up 2-3 seconds later.
neither have I read anywhere in the manual does it state stepping on the throttle to accelerate to 1500rpm, on a warm engine, triggers “rev protection “ and/or a power cut.
I wont comment on cold start up revs as I don’t practice that, and have not personally experienced that.
Go on the BMW forums. Multiple threads saying the exact same thing. I do know what you, and he are experiencing, because mine does it too from time to time. Maybe once every 20 starts or so, it won't rev after start-up or it has the hesitation at the light. As soon as you get going, it's normal again. As described in the manual.
[/QUOTE]
For the benefit of other members with throttle hesitation issues : i haven’t seen anyone else say this behaviour is normal. no one at the dealership has tried to claim what I experienced in my car is normal either.
I have run sensor readings and it shows that the pedal has been depressed but fuel pressure drops slightly below idle level along with the RPMs, and suddenly shoots up 2-3 seconds later.
neither have I read anywhere in the manual does it state stepping on the throttle to accelerate to 1500rpm, on a warm engine, triggers “rev protection “ and/or a power cut.
I wont comment on cold start up revs as I don’t practice that, and have not personally experienced that.
Sponsored
Last edited:
