strange one

**callyuk** · Thursday 16th July 2009, 16:44

so i need ideas as to why im dropping boost in just one gear 2nd i think hard to tell in an auto but it will only boost to 0.6 bar rather than the 1bar it boosts to in every other gear.
management light is on so what do i need to read the codes as it has the stupid obd socket rather than the onboard diag port

**Alan M** · Thursday 16th July 2009, 17:22

You will need to make a flash code reader as per Jods instructions over on the VOC forums to read your codes. If the fault light is lit on the dash there is obviously a problem somewhere.

**AlanG** · Thursday 16th July 2009, 17:23

Definite retro step removing the self-diagnostic,mine is the same buddy. Either invest in a code reader or pay someone. Have heard of some members making their own but I'm sure someone will be along to help.

**callyuk** · Thursday 16th July 2009, 17:28

Originally Posted by Alan M

You will need to make a flash code reader as per Jods instructions over on the VOC forums to read your codes. If the fault light is lit on the dash there is obviously a problem somewhere.

im no good with building electrical items. is there not one im able to buy then

**AlanG** · Thursday 16th July 2009, 18:05

Think Draper do them buddy,I bought one for re-setting the service light but that is all it does. Probably 3 figures.

**callyuk** · Friday 17th July 2009, 21:32

no one else got any ideas or know where i can get a code reader from

**callyuk** · Sunday 26th July 2009, 09:43

well i have to say im very dissapointed thought someone might have come up with some idea

**JelT5** · Sunday 26th July 2009, 11:26

Have a look on ebay mate. If it's OBD2 then there are plenty to choose from.

**callyuk** · Sunday 26th July 2009, 11:48

its an 850 so its not obdII

**AndysR** · Sunday 26th July 2009, 13:22

Is it an early 850 then? 96 on models were OBDII equipped

If not then it has it's on onboard diagnostics for fault code reading

Do you have a coin holder in front of the gear stick on the centre console? If so your car is OBDII equipped

**AlanG** · Sunday 26th July 2009, 14:17

Mine is Jan '96 and OBDII..........

**Rhys** · Sunday 26th July 2009, 14:20

Originally Posted by AlanG

Mine is Jan '96 and OBDII..........

Mines an OBD-II (has it written next to coin holder)

**callyuk** · Sunday 26th July 2009, 18:29

yes it has the obdII connection under the coin slots but these cars are not compliant with obdII software

**t5 pete** · Sunday 26th July 2009, 18:59

take it to volvo or a volvo tuner for the codes being read out

**AlanG** · Sunday 26th July 2009, 19:19

Originally Posted by callyuk

yes it has the obdII connection under the coin slots but these cars are not compliant with obdII software

Bit of a f**k up there by Volvo. It's only partially compliant but the codes are read from there and the service/airbag lights reset.

**cameron** · Sunday 26th July 2009, 19:44

The garage i was working in had a cheap reset tool off Ebay, something like £80 iirc it was brill, reset everything you could want, you could also alter settings with it as well, but only if you knew what you were doing, which i didnt so left well alone.

Used it too reset the lambda sensor light and thats as far as i went

Im sure someone on here was offering a loan of a reader for postage costs, was a bit ago though

**5seaterT5x2** · Sunday 26th July 2009, 19:50

Originally Posted by callyuk

well i have to say im very dissapointed thought someone might have come up with some idea

make one cost you about £3 bout 3 bits of wire a switch and an led light got all the bits from maplins takes 5 mins do a search very clear instructions and simple to make

**callyuk** · Sunday 26th July 2009, 19:53

yes thats what i am going to do now i got a mate sorting it out for me

**Jod T5** · Sunday 26th July 2009, 22:28

Originally Posted by callyuk

yes thats what i am going to do now i got a mate sorting it out for me

Hi Aaron
The box is obd11 and such can be read with the appropriate reader
The fuel ECM is flash code only and can be read with a flashcode reader..I can lend you one if you like...
Cheers
Jod

**callyuk** · Sunday 26th July 2009, 22:32

thanks for the offer may take you up on it if i get no where with this led thingy.
but what you are saying is its half obdII compliant and half not so really you would need both types of reader to check the whole system