SillyFezzaMk1

iTrader: (1)

Hi guys, been offered a P8 from a large turbo model escos.

Is this emmisions (i thought emmisions was only small turbo but need to clarify)

And other than anti-lag capabilities what are the other advantages over a L8?

Dan

Stu @ M Developments

iTrader: (12)

None really.

Billabong

Not sure what you mean by emissions - P8 was large turbo EsCos, EECIV management on the small turbo.

Both had closed loop lambda control as std if that was what you meant?

Turbosystems

iTrader: (5)

p8 can run wasted spark as standard it is a faster more powerful ecu ,it is also speed pressure throttle angle as opposed to old speed density.But can be configured to run either.

GARETH T

closed loop boost control

Disabled Account

Dan, with the developments that Stu/Kenny at MSD have done on L8 you would be crazy to even think about fitting the more unreliable P8 ecu.

Not a for sale post, but standard L8's and MSD wasted-spark converted L8's are always in stock and available next-day - you know who to call..........

Turbosystems

iTrader: (5)

the p8 is not unreliable the l8 is old and it is the one we see most of for repair
The p8 is far superior

Disabled Account

Ask Stu

Stu @ M Developments

iTrader: (12)

Must admit Tony, i have NEVER seen a Faulty L8 and have seen TENS of faulty P8's, the most common being adaption failure which leaves them over rich at all points and hard reset cannot fix it.

I have seen plenty of faulty L8 Pectel CPV boards though if thats what you mean? L1 and 6 were both unreliable garbage, but i find the L8 to be the best.

Turbosystems

iTrader: (5)

selling products for the l8 that the p8 does standard may lead to a biassed answer doug.

Stu @ M Developments

iTrader: (12)

But we sell the same products for P8 if people want them and have done for years Tony, so why would we care?

Wasted Spark.
Closed Loop
ALS
Serial datastream. (Far better than the Pectel one too i might add)

And we can REALLY live map them, as opposed to pretending we can map them like some so called professional mappers in this country, so theres another reason we do like P8 as people choose us specifically because of this, so its not like wde slag the P8 off.

But it doesnt change the fact that the L8 is just as good as the P8 on a YB as far as i am concerned.

Disabled Account

Edited:
Because Tony's bum-bag contains a real time 8 bit emulator.............. for ME

Stu @ M Developments

iTrader: (12)

Woah there, i didnt mention any names, nor will I be doing...

Turbosystems

iTrader: (5)

The p8 ecu is extremely advance the als wasted spark and start line strategies were developed by pectel and encrypted this made copying almost impossible without huge cost .and is often why people prefer to use the older less complex ecu's to develop products for.
In 1993 the als board was 1450 and was ford motor company only the current price is 495

Stu @ M Developments

iTrader: (12)

Why was any of that information relevant? You dont even need a Pectel board to run ALS on a P8. This topic isnt about Pectel.

Dave Henshall

i had a L8 ecu in my 4x4 saph for 3.5 years = not 1 single running problem.

i had a P8 ecu in my escos for 4 years = several problems including cold starting, hot starting and rough running amound the symtoms that were all fixedbut all ECU related none the less.

Stu @ M Developments

iTrader: (12)

Topically enough, Most of those problems sound like they would have been related to a Pectel equipped ECU.

RS500/364

Just to ask was that a standard chip on you P8 !!

Turbosystems

iTrader: (5)

hmmmmmmmm i disagree those sound like escort cossie wiring loom issues

SillyFezzaMk1

iTrader: (1)

No by emmissions I mean catalytic converter model....I read somewhere ages ago that the catalytic converter version of a P8 needed a signal from a sensor after the cat or something...making it almost useless on a non-catalytic cossie....If you get me? I think they have green lables not sure though just want to clarify before I get this ecu

Dan

SillyFezzaMk1

iTrader: (1)

Some interesting points here.....seems like a fierce dbate which is best to use a P8 or L8..

Does the L8 ecu have closed loop as std?

If so I might just stick with the tried and tested....If it requires a mod then i'll probably end up just using the P8 as I have both so would be daft to get rid of the P8 and then have to pay for the L8 to be upgraded to the P8 spec.

Stu @ M Developments

iTrader: (12)

Both just need the correct chip fitting form your favourite tuner.

JTECH James

iTrader: (13)

you could sell the P8 as they fetch good money now, and buy three L8's

Billabong

All the production Escort Cossies left the factory with lambda sensor and cat'. Some very early ones had a CO trim screw on the P8 ECU, like the L8 ECU's had.

The bit about it being useless on a non-cat' model is wrong. The lambda control can be set how the mapper wants it AFAIK, but check with your tuner/mapper.

P8 with a standard chip & non-cat' may not work so well though - maybe that's what you read?

Also, some other vehicles used the P8 ECU.


EDIT: must hit submit when finished typing

SillyFezzaMk1

iTrader: (1)

So what are the common faults with the P8? and are they fixable with software or are they hardware issues?

Billabong
Right so all Escos had cats? If so how do you use the P8 in a saph for example? isnt there a sensor that signals ecu after the cat for emmisions or something?

Dan

Dave Henshall

no, well lane turbo centre phase 0, then an ahmed stg 3 on pectel board.

Dave Henshall

there is and never has been an after cat sensor on any cossies, the sensor was always in teh turbo or in the down pipe after the turbo - in either case BEFORE the cat - so it made no difference if a cat was fitted or not as to whether the ecu would work with / without one, obviously you couldnt fit a non car ecu to a cat car and expect the cat to be ok after wards though

the factory chip uses the lambda sensor on all p8's and green top L8 cars, but not all after markey chips retain the lambda control in the software even though the cat and sensor before it are there

SillyFezzaMk1

iTrader: (1)

i'm getting confused with Green top L8's I think......I thought there were 2 different types of P8 but its the L8 that there are 2 of..the greena nd red top...

And the difference being the lambda not the cat which I was told...

Cheers for clearing it up guys.

So what goes wrong with the P8's then and if it goes wrong is it a hardware job or software fix?

Dan

RS500/364

Think that down to your chip and was it from ahmed the pectel stage 3 LOADS USE HIS NAME AND NOT HIM bet the problem in large wasnt on his chip !! or him seting it up
always use the person not his name
THAT WHY I USING MSD FOR THE SAFF STU DO I GET A WINDOW STICKER LOL

I use super P* ECU on the RS500 and will be MSD close loop L8 on the saff !!

SillyFezzaMk1

iTrader: (1)

super P8?

markk

iTrader: (2)

ive had P8 for 8 years and used it for competition purposes in a forrest rally car, had all options on it, duel map, ALS, WI, coil pack etc etc
never had any issues at all ! !

SillyFezzaMk1

iTrader: (1)

Can you activate all of these options on a std ecu or does the ecu need upgrading to run all of the above?

Dan

RS500/364

8 injector version

All can be just never heard of two maps in a P8

markk

iTrader: (2)

all can be utilised in the software except dual map, MSD did this with a small chip holder thingy and a split eeprom with two maps stored on it.

RS500/364

ok so why two maps

markk

iTrader: (2)

for what ever reason you want two maps, boost level, driving restrictions, test modes, fuel changes, restrictor changes the worlds your lobster !

RS500/364

ok just never heard of it well on P8 others yer

SillyFezzaMk1

iTrader: (1)

how do you change between the maps using this conversion?

Dan

markk

iTrader: (2)

flick the switch (that you fitted to the dash)

SillyFezzaMk1

iTrader: (1)

thats an interesting mod there.....Could be beneficial when using a higher octane fuel etc... what kind of change did it cost you?

Dan