Wont rev past 2k rpm
- Thread starter Sunny-D
- Start date
Sunny-D
Member
I checked it a while back and set it to 0.5v, re-checked it 20 mins later and got a fixed voltage of 2.74v no matter what position the throttle was at? the car still seems to drive ok, albeit with a slight miss on tickover.
I checked the fault codes as soon as it started playing up and it came back 11, but its been showing this on and off for a while. But after clearing the codes and nurseing the car home it comes back 55?
I checked the fault codes as soon as it started playing up and it came back 11, but its been showing this on and off for a while. But after clearing the codes and nurseing the car home it comes back 55?
Fire & skill
Vintage member
fuel pump?
Trip
New Member
fixed voltage of 2.74 ? TPS should be below 0.5V at idle and go over 4.2V at WOT.
projectgtir
Member
Could be the cat temp sensor playing up .
This causes some sort of limp home type thing. But basicly the car is undrivable. 1800-2000 rev limit and when you hit it the car goes back to idle speed.
It happend to me a few months back .
You usually get a light on the dash thats permanantly on . It looks like a sausage with heat lines above it.
This causes some sort of limp home type thing. But basicly the car is undrivable. 1800-2000 rev limit and when you hit it the car goes back to idle speed.
It happend to me a few months back .
You usually get a light on the dash thats permanantly on . It looks like a sausage with heat lines above it.
Now that's interesting; the hotdog sensor isn't actually connected to the ECU anywhere (I'm pretty sure Fusion Ed corroborated that), but a couple of people have reported that as a fault. - I suspect it's some kind of cross wiring because all that warning light is supposed to tell you is that you're likely to set fire to long grass etc if you park over it.
My hotdog warning comes on periodically (usually when I've been out in the snow or heavy rain), but it has never caused any issue with the running... usually I've been doing some "spirited" driving to have got it wet and caused it to come on.
Ed if I've misquoted you, sorry. I'm sure this one had been covered a few times now and the consensus was that there should be no reason for the car to go into limp mode, but it still happens to some people.
My hotdog warning comes on periodically (usually when I've been out in the snow or heavy rain), but it has never caused any issue with the running... usually I've been doing some "spirited" driving to have got it wet and caused it to come on.
Ed if I've misquoted you, sorry. I'm sure this one had been covered a few times now and the consensus was that there should be no reason for the car to go into limp mode, but it still happens to some people.
projectgtir
Member
Yes its interesting in the sense that it shouldnt happen, maybe all pulsars are not wired how they should be . It would maybe explain all the misfire and electrical gremlins these cars seem to have . Mine especially .
But unplugging it under the seat solved it for me , but why who knows .
I think ed said he'd have to literally rip one to bits to find out where the wires goes back to.
But unplugging it under the seat solved it for me , but why who knows .
I think ed said he'd have to literally rip one to bits to find out where the wires goes back to.
Sunny-D
Member
My cars a 92 J reg uk sunny with no cat and i dont have any lights on or fault codes, but the symptom's are exactly the same. Its definitely some sort of electrical thing though.
Sunny-D
Member
Finally got round to checking the car over today. Its had the battery disconnected since it played up, so its had a chance to reset itself.
It started first time with no problems. The maf is getting 1.28-2.89v from one orange wire, the other is 14.12v and resistance is .009v, the tps is getting 5.12v and the signal wire is 3.81-3.92v, but the car runs ok?
Does this mean the tps is shagged?
It started first time with no problems. The maf is getting 1.28-2.89v from one orange wire, the other is 14.12v and resistance is .009v, the tps is getting 5.12v and the signal wire is 3.81-3.92v, but the car runs ok?
Does this mean the tps is shagged?
Sunny-D
Member
Thats what ive been dreading, i spent quite a bit getting that ecu remapped.
Sunny-D
Member
Do you have to unbolt the ecu to see the red light?
no, theres a little window on the side of ecu to see it through. should be on when you turn ignition on. then off once engine is running.