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944 turbo s (silver rose )

G

gaz924s

New member
Hi

I have a 944 turbo s with an overfueling problem I have checked and in some cases swapped just about everything only leaving the ecu which I opened up to find a piggy back chip in situe I have swapped this for the chips from my brothers car and it brings my emissions from 7% to 3% so worked.

Anyhow has anyone got a set of standard chips I could purchase as it is not running another mods not even fuel preasure regulator so I need standard again and start from there

It is 1988 sliver rose any help will be appreciated

Thanks
 
I probably do - I have a few chipsets lying around.

I'll check what I have tomorrow and let you know.
 
Hi mate, had a quick look but can't find an original standard DME chip, sorry.

I have Guru & ProMax but they are both for 18psi and 3bar FPR so not what you are looking for.

I do have a set of Superchip chips which are for standard FPR & injectors - from memory the fuel tables are dead standard in them and it's only the ignition that is tweaked. I can dig them out and check if you are interested.

Alternatively, if you can't find any original standard chips I could burn you one.
 
How much would you want to burn me a set of standard chips ?

I have the super chips set in at the mo and I think that is what's causing me the problems also how quick could you do them as I could do with getting her back of the road again soon

Thanks Gareth
 
Sorry just a random question ..
I wonder if the 88 S was the same engine Map as the later cars?Wonder if they changed it for refinement after the sporty S?
 
Hi Gareth,

I've just looked at the maps from the Superchips I have and there is no difference in any of the fuel tables between them and the copy of the standard file I have.

There are some differences in injector base pulse width though, so maybe that is causing your problem.

Having spoken to Superchips, their current chipset is supposed to be fitted in conjunction with a bleed valve which increases boost by 5psi - don't know if they have changed over time though, or how old your set is - or mine for that matter. Bleed valves & jetted banjo bolts are fairly old tech though, so they are probably the same.

When I get home I'll see if I have a spare 28pin chip I can burn for you - if I do I can do it straight away and I'll let you know.

Also, do you know what position the fqs switch on the dme is set to (the rotary switch that you can see through the small round hole in the dme case)? That could also be causing a problem if it needs to be set differently to suit the superchips. eg it could be set to +3% when it needs to be -3%.....say.

In what way is it overfueling - is it just emissions at idle that you are looking at?
 
I had the superchips set up on mine with bleed valve before I went down the Promax road. Interestingly only the DME was chipped, KLR was still original chip. The car went very well with the boost flying off the chart on the in dash gauge (before I had my aftermarket gauge fitted). Easily made 280HP along with my MAF. I have only gained another 20 or so horses from going Promax level 2 and 3 bar FPR.

Anyway, back to my point, the superchips maps and settings performed perfectly well on my 250 turbo which is the same as what you have so I think your problem may lie outside the chipset.

Edit to add my car was on FQS zero with the superchips set up.

Stuart
 
Hi Gareth,

I found a blank 28 pin chip so if you want I can make you a chip a send it out tomorrow.

However, I think I agree with Stuart that your problem may possibly lie elsewhere and it's certainly worthwhile making sure you are on fqs0 - rotary switch turned fully anti clockwise - you will feel the clicks as it moves between positions and there are 8 positions in total.

One other thing did occur to me - there are actually 3 sets of maps in the chips and they are supposed to be selected by different combinations of two plugs in the loom to the dme.

Everyone assumes that the car will run on map set 1 by default but on mine map set 1 is not available as one of the plugs seems to be missing from the loom. I have always wondered if that is a peculiarity of the Turbo S, and if yours is the same maybe you are not using the maps that Superchips expect?
 
Both dme and klr are chipped fqs is set to one and I have checked that but there does seem to have been a bleed valve on at some point and I have had to block the vacuum off to where it went too, But I don't think it has ever run properly since I have owned it as someone has taken all of the bits off.

I would appreciate a set of plain chips standard as I have tried the chips off my brothers later 250 bhp model and it has sorted the Problem out so all 250 ecu's run the same chips.

The machine was reading 7% on tick over and went down to between 3-4% on load so it's overfueling all through the other chips were 3% and down to 1-2% on load

Let me know how much you want for standards chips

Thanks
 
OK mate.

You won't need to change the KLR chip, just the DME.

I'll make you one today and get it ready to send out - send me your address details and I'll get it off to you.

Don't know how much is fair just for a standard DME chip really, not much though - you sure you don't even want a cheeky little increase in the rev limiter? [:D]
 
The late cars do have a diagnostic port (round screw off cover behind the glovebox), not sure if there is extra code on the ecu chip for this. I know with Guru chips in Jon M couldn't access the diagnostics when plugged in - he had my original chips to have a look at.
Tony
 
Chip came today will try it and see how it goes thanks

Payment will be sorted too sorry for delay I can't transfer from my account so will do it from business account tomorrow

 
GPF, do you have a 28 pin " performance " chip going spare, 3 bar FPR, Resprung wastegate etc it is for my 220 which is 24 pin, but i suspect the ECU may be faulty, i have a nearly new later ECU 28 Pin.
Jim.
 

ORIGINAL: gaz924s

Chip came today will try it and see how it goes thanks

Payment will be sorted too sorry for delay I can't transfer from my account so will do it from business account tomorrow
Click to expand...
No problem - try the chip first in any case.
 
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