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I have an 05 3.2s tip and after a bit of spirited driving when you stop at a junction and then try to accelerate away it's as if there is a limiter kicking in and the car will not respond for about 10 seconds. My initial thoughts are tps or anyone experienced similar.  Help TIA

Edited by JAM60
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May I add to this: No warning/engine management lights were illuminated? The fault is intermittent I was starting to think it was only when setting off from a standing start and turning left/right but it also happened when setting off in a straight line. I have an obd reader but it stated no faults recorded/present. I remember you could set the limiter in my Merc and it would do the same ie set it to 50 and it would not exceed 50mph no matter how hard you pressed the throttle.I have only had the car (Bought Private) a week and hoping it won;t be the start of thngs to come?

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Hi

I had a similar experience with my 05 2.7 Tip which might be the cause..... Please read below:

Following several instances of the fault message " Selector Lever Not Engaged" and a hesitation of power (flat spot) which seemed to accompany this message, I took my car to GT One at Chertsey.  Although, no faults were logged when tested with the diagnostic unit, the team at GT One correctly diagnosed the fault being  within the gear selection multi-function switch. This was duly changed and the car is now behaving perfectly.

I must congratulate Peter, Craig, Tom and the rest of the GT One team for their First Class personal service to their customers.

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I have my own scanner which showed 0 codes???? Took it to my friends garage and He found 18 on His Snap On Reader.By chance  the Snap On rep called round (Ex Porsche Tech) and He advised to try a few things which I have yet to do.We wiped all the codes and will take it back after I put a few miles on it. However the only engine code was P0431-02 which  we agreed didn't think was the cause of the fault. Will keep you all updated as it goes on

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Hi, Plugs recently unsure on coil packs as not had the car that long. My wife was going to take it to work this morning but returned after 10 mins and took her own car as the fault is getting worse. Sadly no time to look properly at the moment😪 so back in the garage for it. 

Edited by JAM60
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2 minutes ago, JAM60 said:

Hi, Plugs recently unsure on coil packs as not had the car that long. My wife was going to take it to work this morning but returned after 10 mins and took her own car as the fault is getting worse. Sadly no time to look properly at the moment😪 so back in the garage for it. 

2 weeks of ownership, two faults...... Anyone want to buy a Porsche. 

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You could unplug the electrical plug on the MAF and see if there is an improvement. If there is it points to a faulty MAF. I'm not entirely convinced it is the MAF but as it costs nothing to do this check it's worth a try.

Edited by Boxob
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  • 2 weeks later...

Disconnected the MAF sensor and sadly the faults were still present. Oddly though this did not put the cel light on. I have the car booked in at Revolution for them to investigate. Will keep you posted. 

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I had a similar fault, and doing two things cured it:

a) Replace air-oil separator

b) Replace MAF sensor

In my case both were faulty, so it's unclear which was causing the issue. It started out with intermittent power loss at high revs/hard acceleration. but got progressively worse such that it wouldn't rev above 2.5k.

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You have to laugh..... Took the car over to Revolution Porsche at Brighouse on Sat, quite eventful trip! The exhaust joint bolts broke en route and I was nearly deaf when I arrived. Anyway I have left it with them but did have a nice uneventful drive back in the wife's JCW Mini.

Edited by JAM60
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  • 4 weeks later...

Sorry for the late answers. Lack of throttle response found to be gummed up throttle body and a faulty throttle pedal. The exhaust was also repaired expertly by Revolution who I have to say are top guys👍. The hunting/surging is still just present but not as bad as it was. Revolution did say to try it and if not happy return it after Xmas for further investigation. I am currently undecided. But as I said Gareth & his team at Revolution Porshe are brilliant👍

 

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10 hours ago, JAM60 said:

Sorry for the late answers. Lack of throttle response found to be gummed up throttle body and a faulty throttle pedal. The exhaust was also repaired expertly by Revolution who I have to say are top guys👍. The hunting/surging is still just present but not as bad as it was. Revolution did say to try it and if not happy return it after Xmas for further investigation. I am currently undecided. But as I said Gareth & his team at Revolution Porshe are brilliant👍

 

Goof progress, but if it isn;' "right" then get it back to them - it will bug you forever and spoil your enjoyment of the car, I have never used revolution but their reputation is very good - they would want you to be happy with the car.

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Paul P I understand what you are saying however it is just noticable and you have to look for the rev range its in when driving. So i'm going to give it a bit longer as I dont usually drive it in the range where it manifests......

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  • 3 weeks later...

Aw bugger looks like the original fault is returning. After prolonged overrun you then press the throttle and nothing...... Until you release and press it again. Done it three times over 150 miles so very intermittent Hmm back to Revolution when the weather improves methinks. 

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Maybe the throttle body has got gummed up again due to a failing AOS, or just needs to be replaced. Good luck with getting it sorted. Couldn't be in better hands.

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  • 1 year later...

Did you ever work out what this was?  Just bought a 2005 3.2 and it has exactly the same behaviour as you wrote.

I’ve cleaned the MAF, throttle body and plenum.  The OAS was charged by OPC not long before I bought it.  No change I behaviour, so bought a new Bosch MAF, fitted that and it’s still the same.  Run out of ideas, so would be interested If you ever sorted it?  Thanks

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51 minutes ago, Xtoff said:

Did you ever work out what this was?  Just bought a 2005 3.2 and it has exactly the same behaviour as you wrote.

I’ve cleaned the MAF, throttle body and plenum.  The OAS was charged by OPC not long before I bought it.  No change I behaviour, so bought a new Bosch MAF, fitted that and it’s still the same.  Run out of ideas, so would be interested If you ever sorted it?  Thanks

Hi, welcome to the forum and ownership, hope you get it sorted soon.

I'd suggest get it on a code reader and see if anything being logged, may help narrow down root cause.

Depending on where you are, there maybe someone on here who has a reader/Durametric who can help re that.

Edited by iborguk
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Hi guys, thanks for the welcome.

 

ive got a cheap OBD2 scanner and it shows no current or historical faults, even though this has happened lots (more than 20 times I’d say in the 6 weeks of ownership).  If you run the scanner in live mode, it appears that there is a slight drop in MAF pressure when the issue happens, you then see me release the throttle almost immediately, then as I press the throttle again there is a massive surge on the MAF and it sorts itself.  These results were taken with the new, genuine Bosch MAF fitted.  It’s as if the MAF data is buffering to the ECU, but that shouldn’t be possible should it? I guess it could be my OBD2 scanner buffering, but it seems a coincidence.
 

Being a manual, I assume it’s not the same fault as Geoff B had, but I noticed that the fault returned for Jam60 so was hoping for inspiration.

 

My next door neighbour has a local specialist he uses for his 911 Turbo, so I think I’m off to a visit there ☹️

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77ACC2E4-5FAE-4DB7-AFF2-E7110CA269EE.png

Edited by Xtoff
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1 hour ago, Xtoff said:

Being a manual, I assume it’s not the same fault as Geoff B had, but I noticed that the fault returned for Jam60 so was hoping for inspiration.

Welcome. Jam60 was last on the forum in Feb19 so unlikely to get any feedback from him.

1 hour ago, Xtoff said:

My next door neighbour has a local specialist he uses for his 911 Turbo, so I think I’m off to a visit there ☹️

Good idea! Let us know how you get on and who the specialist is.

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1 hour ago, Geoff B said:

Hi iborguk

As described near the top of this post,  it turned out to be the gear selection multi-function switch. This was duly changed and the car is now behaving perfectly.

Regards

Geoff

Thanks @Geoff B  - glad you got your car sorted, I think our posts crossed there - my code post was aimed at @Xtoff who sounds like he now has a plan re diagnosis.

 

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  • 3 months later...

Hi everyone.

 

Well it’s been a while, and I thought it was worth an update.  Due to lockdown it was hard finding a garage that would look at the car.  Eventually I got a slot at Auto Farm in Bicester.  They had the car for a week or so, but couldn’t get it to misbehave.  So I met up and one of their engineers who plugged in a ODB2 reader and I took them out.  Within 50 yards it played up, which was good....  after a lot of head scratching and talking between us; he suggested it could be the break pedal switch.  Being a cheep part, we thought it was a good place to start.

 

It’s been two months since the work, and the car hasn’t played up since.  So look like he was right after all.  😃.  The thought behind it is that if you heel and toe the brake and accelerator the car realises you still have the brake pedal depressed so it limits the engine to prevent damage.  With a dodgy brake switch it thought I had my foot on the brake as I was pulling away, so it limited the revs to 3,000.  It also explains why there was never a fault code registered!

 

The part was £25 ish, and a few hundred quid for their investigation time; and I have a fantastic car again!

 

Hope this helps someone else in  the future, and thanks for the advice

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