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Author Remapped Astra GSI turbo (mk4)
richc
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Registered: 24th Mar 07
Location: Ilkeston
User status: Offline
4th Jul 09 at 21:31   View User's Profile U2U Member Reply With Quote

Went with a friend to get his car mapped today. 'Phase one EDS' aparanty.

On the way home giving it some beans (warm day), he .wasnt impressed. So i drove home for a while, and gave it some beans, and we found it very hesitant.

From 3000 revs in 2nd (30 mph), boot it, it comes on boost, hesistates (so much it feels like you have taken your foot off the throttle) and does the same again at nearly 4k, then pulls to the redline which is set stupid high in my opinion (over 7k rpm - off the clocks).

The guy says its its AFM. It wasnt showing any faults, but he says its old (was 53 plate car done 55k), and its not just at its full potential, and now its been mapped, the car is damanding more and it cant cope. Would this throw up and engine management light though?

Is he bullshitting?


Any help appreciated



Ps, he took us for a spin in his 340 bhp astra coupe, which went quiet well too once you got going (first and second gear useless)
Ojc
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Registered: 14th Nov 00
Location: Reading: Drives : Clio 197
User status: Offline
4th Jul 09 at 21:47   View User's Profile U2U Member Reply With Quote

Sounds like AFM or boost solenoid.

Common fault, easy fix.
frostyD
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Registered: 16th Mar 07
User status: Offline
4th Jul 09 at 21:53   View User's Profile U2U Member Reply With Quote

Plug a code reader in, see what comes up. But if it is the AFM it would throw up the EML straight away, the car would idle slightly funny. the code will be p0100 for AFM.

Doesnt sound like the AFM though.

Could be one of a number of things, Is comon for boost solenoids to fail, there are 2 of them. Check the actuator isnt sticking. Check for leaks in the vacum pipes, there are a few that run down the back of the engine into the rear solenoid and vacum box, check that all these are connected they sometimes pop off.

What boost does the car now hold ? What intercooler is on the car ?

[Edited on 04-07-2009 by frostyD]
richc
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Registered: 24th Mar 07
Location: Ilkeston
User status: Offline
5th Jul 09 at 01:35   View User's Profile U2U Member Reply With Quote

Cheers guys

Boost solenoid has been changed (he said in general convo earlier). but didnt realise there is two!

Had a code reader in, and nothing comes up.

Not a clue what boost it holds (no gauge to check) and it has standard cooler on the car.

Its only running 'phase 1' so i would of thought the stock cooler would be fine.


ShEp
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Registered: 9th Aug 05
Location: Dingwall, Highland
User status: Offline
5th Jul 09 at 01:49   View User's Profile U2U Member Reply With Quote

Bypass the rear BCS they're a twat anyway.

I'm saying AFM though, had that problem with mine. but it should put the light on.
dannymccann
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Registered: 9th Aug 06
Location: Doddington, Lincolnshire
User status: Offline
5th Jul 09 at 05:46   View User's Profile U2U Member Reply With Quote

Does the EML actually have a bulb / working bulb? This could be the issue of not seeing a code Seen it before
BYRON
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Registered: 1st Jun 04
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5th Jul 09 at 07:53   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by dannymccann
Does the EML actually have a bulb / working bulb? This could be the issue of not seeing a code Seen it before


never seen that on later vauxhalls?
Cole
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Registered: 11th Nov 02
Location: eastbourne Drives:zafira sold now a qashqai
User status: Offline
5th Jul 09 at 07:58   View User's Profile U2U Member Reply With Quote

mine does something similar to that but its not everytime but it doesnt throw up the eml light and there are no error codes on fault finder either more than likely eds death map lol
frostyD
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Registered: 16th Mar 07
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5th Jul 09 at 08:08   View User's Profile U2U Member Reply With Quote

Who mapped the car
Warren G
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Registered: 14th May 06
Location: Kent
User status: Offline
5th Jul 09 at 08:27   View User's Profile U2U Member Reply With Quote

as said, sounds like boost solienods/afm fault
R1CH
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Registered: 28th Sep 03
Location: Kent
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5th Jul 09 at 09:34   View User's Profile U2U Member Reply With Quote

Sounds like plugs to me, What plugs are you using? Are they gaped correctly ?
Cole
Member

Registered: 11th Nov 02
Location: eastbourne Drives:zafira sold now a qashqai
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5th Jul 09 at 09:43   View User's Profile U2U Member Reply With Quote

now you say that rich my coil p[ack went had it replaced plus new plugs and it did something similar to the above pulled the plugs out to find wrong plugs had been fitted swappd em with some ngk bkr6eix plugs never done it since come to think of it
richc
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Registered: 24th Mar 07
Location: Ilkeston
User status: Offline
5th Jul 09 at 10:42   View User's Profile U2U Member Reply With Quote

Frostyd @ it was mapped by 'Toms turbo's' in boston boston lincs who says he works on behalf of regal......

Also frosty, for what he did, my little sister could of done it, so i think its irrelivant tbh

R1CH @ We gapped he plugs correctly when we got back as we thought this was the case, but it still has the problems.

Gapped at 0.65

Cole @ you have the same map on your Zafira? (Phase one) Was you impressed?. So your saying you changed the plugs and it emliminated the hesistance.

Shep @ Did you changed your AFM? Did you have the same problem then?

Appreciate it guys

[Edited on 05-07-2009 by richc]
ShEp
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Registered: 9th Aug 05
Location: Dingwall, Highland
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5th Jul 09 at 10:57   View User's Profile U2U Member Reply With Quote

Yep, had the same problem, I changed the AFM and it's fine now.
richc
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Registered: 24th Mar 07
Location: Ilkeston
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5th Jul 09 at 11:02   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by ShEp
Yep, had the same problem, I changed the AFM and it's fine now.


I think thats the reassurance he is looking for!

Cheers shep
corsa120
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Registered: 4th May 02
Location: Northamptonshire
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5th Jul 09 at 11:41   View User's Profile U2U Member Reply With Quote

afm's are cheaper at courtenay sport if that helps....

mine was also hesitant as one of small rubber hoses at front of the actuater was split open..... my car never threw up the eml when my afm went and yes the bulb does work
SportBoy
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Registered: 5th Oct 01
Location: Retford, Nottinghamshire
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5th Jul 09 at 11:42   View User's Profile U2U Member Reply With Quote

sounds like an airflow meter prob to me.
R1CH
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Registered: 28th Sep 03
Location: Kent
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5th Jul 09 at 11:45   View User's Profile U2U Member Reply With Quote

I've never known an afm to just play up with no EML, they usually just fail
Cole
Member

Registered: 11th Nov 02
Location: eastbourne Drives:zafira sold now a qashqai
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5th Jul 09 at 11:50   View User's Profile U2U Member Reply With Quote

Mine is phase 2 in a zafira and yes I am impressed by it
frostyD
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Registered: 16th Mar 07
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5th Jul 09 at 15:32   View User's Profile U2U Member Reply With Quote

How does it idle ? does it fluctuate ?

An AFM prob would flag straight up though.

Get TOMS TURBOS to put original map back on, see how the car is then.
richc
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Registered: 24th Mar 07
Location: Ilkeston
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5th Jul 09 at 16:16   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by frostyD
How does it idle ? does it fluctuate ?

An AFM prob would flag straight up though.

Get TOMS TURBOS to put original map back on, see how the car is then.


Idles fine, and never had the problem before. Was straight after it was mapped.

He says the AFM works, but its not upto the new demands of the map, hence no EML light

Thanks again chaps
frostyD
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Registered: 16th Mar 07
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5th Jul 09 at 17:41   View User's Profile U2U Member Reply With Quote

Standard ZLET AFM is still well within its limit on a phase 1 map.
ShEp
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Registered: 9th Aug 05
Location: Dingwall, Highland
User status: Offline
5th Jul 09 at 18:17   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by frostyD
Standard ZLET AFM is still well within its limit on a phase 1 map.


Yeah easily

But some things trigger problems that are already underlying

When I fitted my exhast I started having trouble with my AFM, I wasn't believing the exhaust knackered the AFM, but when I renewed it, the car was fine
frostyD
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Registered: 16th Mar 07
User status: Offline
5th Jul 09 at 18:21   View User's Profile U2U Member Reply With Quote

now that is an odd one
SAL
Premium Member

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Registered: 19th Dec 05
Location: Radlett, Hertfordshire
User status: Offline
5th Jul 09 at 21:37   View Garage View User's Profile U2U Member Reply With Quote

Astra ownership


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