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P8 ecu not running

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Old 27-05-2006 | 09:51 AM
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Default P8 ecu not running

have just recive my ecu back from mapping and it wont run my fuel pump up so it wont run have i mist someting as it was running with the L8 in last week im thinking that you have to put in a swich for the pectal ecu right?????any help pls its and ecos big turbo???thanks all
Old 27-05-2006 | 12:51 PM
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If I recall correctly PECTEL software can switch the pump on and off within the ECU. You may have to send it back and have the fuel pump enabled.
Old 03-06-2006 | 06:48 AM
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"Mapper" (How has he mapped an ecu with no car?) has given you the wrong chip mate, send it back.

ALL P8's can run the fuel pump no problem, and if your supplier doesnt know how to enable it, he probably doesnt know anything about the map on the chip either.
Old 03-06-2006 | 12:46 PM
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Originally Posted by Stu @ M Developments
"Mapper" (How has he mapped an ecu with no car?) has given you the wrong chip mate, send it back.

ALL P8's can run the fuel pump no problem, and if your supplier doesnt know how to enable it, he probably doesnt know anything about the map on the chip either.
He has a picture of how to install the chip in the ecu
CALLS THE PICTURE A MAP BECAUSE IT HAS DIRCTIONS TO INTALL IT
Old 04-06-2006 | 08:39 PM
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he took my spec over the phone and maped it up but turns out he never tested the ecu so iv sent it back i guss ill have to wait had to put swich via ing ecu will not run pump to bad ah??will let you lot the out come chears all
Old 06-06-2006 | 08:00 PM
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Old 08-06-2006 | 12:40 PM
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Old 10-06-2006 | 07:53 AM
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the car sort of running know had to put a swich via pump as the ecu was out of a rally car also the phase sensor was down ie no spark.only prob know it backfires on start up imean big back fires and ALS is off any info here pls as alittle stuck !!thanks all for replys
Old 10-06-2006 | 04:35 PM
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now that DOES sound like either the phase sensor or TDC sensor, if the phase sensor i may sound like it hydraulic locks , if the tdc, it wont spark but may when u turn the ignition on and if u've been cranking and try again, u get a fookin HUGE bang of of the back
Old 10-06-2006 | 08:07 PM
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hi yes thats what it dose well big bang and after that a few more turns it starts and runs fine what can couse this and how do i get rid of it thanks mate for the info
Old 10-06-2006 | 09:44 PM
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Did you not say it ran fine before you sent the ecu for new software?
Old 11-06-2006 | 01:05 PM
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what do you mean send it back its working just needs sorting out ie the pectel is better then the l8 as it can run all the thing iwanting to run ie coil pac antilag air to air etc etc also when the cars runing it so much beter everyone said what a dirrance its made however as you said it better to get it to the boys for the set up and map this hole set up has cost me over 2k so icant really send it back????iwas thinking giving stu a ring tomoz and ask him a few questions????


ithinks its all down to the TPS as my sces moniter saying 13% throttle on idle also leading back to the phase sensor,has anyone else got any tips as iwant her runing near right as everyone so far away as im in cornwall dose anyone know of a good tuner down this way????thanks for the post

regards
Old 11-06-2006 | 01:09 PM
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Stu @ M Developments
its a differnt unit i had a L* to begine with then opted for the P8 thing is it was off a rally car have you ever had any probs???
Old 11-06-2006 | 03:42 PM
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Originally Posted by barry0777
Stu @ M Developments
its a differnt unit i had a L* to begine with then opted for the P8 thing is it was off a rally car have you ever had any probs???
This is my point.
A L8 car can have a P8 plugged directly into it and it WILL run, perfectly. They are pin perfect identical and use EXACTLY teh same sensors.

If it does not run after plugging in the P8 you either have a bad ecu or bad software. The only difference a rally car would possibly have is the fuel pump activation negative trigger missing as some other functoins were often used on this pin, but your mapper could have simply switched this line back on if he knew the P8 properly. Removing the fuel activation trigger is not a great thing to do on a road car IMO.

What have you paid over Ł2k for exactly?
Old 11-06-2006 | 07:21 PM
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hi stu

first off the ECU cost 620

ALS 200

4 x greys 300

mapping 450

then fuel rail etc

iknow iv spent alot on this even more then just a couple of ŁŁŁŁŁ but when shes running it so nic to have that,as iv said it just need sorting out and ineed alittle help on these last bit best bet is for me to ring and descuss over the phone thanks for the info stu

regards
Old 11-06-2006 | 07:30 PM
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You paid Ł450 for what is basically a custom chip?
Old 11-06-2006 | 09:11 PM
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After reading this sounds like a superb bargin you got there



















NOT!

If you gonna start fuking about with sending ya ecu to get mapped without being on ya car WTF!

You should MA Developments there probs your closest decent known tuners
Old 11-06-2006 | 10:55 PM
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Originally Posted by barry0777
best bet is for me to ring and descuss over the phone
I dont see how i can help you mate. If it ran on teh L8, your supplier is at fault, NOT your car. Unless of course i am still missunderstanding.
Old 12-06-2006 | 06:52 AM
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you need to borrow another L8 or P8 to see it it will start ok on that,

even with the wrong injectors for the chip it will idle albeit rich...
Old 19-06-2006 | 09:10 PM
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shocking business
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