saab 93 aero low revs

[psal]

hi my 03 saab 93 aero 2.0t sport saloon is running low on revs but it drives ok , does anyone know why this might be.

cheers

[aerojon]

welcome to SS..

running low on revs,more specifics if possible..

[psal]

its also got a problem saying air flow cause we took it down the garage he hook it up to the machine and it said air flow

[psal]

when idle its about 800 revs

[aerojon]

its also got a problem saying air flow cause we took it down the garage he hook it up to the machine and it said air flow

What was the fault code?

when idle its about 800 revs

800 is about right for idle..

[psal]

not sure i will ask later thanks for ur help m8 i will text u the fault code when i can

[jezz1]

Does the low idle cause vibration, or is it ok?

[emmett]

hi , i've got an se which has extreemly low revsabout 600 at best when starting then once its warmed up its idleing to high arround 1200-1500, it drives fine and there is no vibration except what you would expect from a cold engin getting going without a choke, noone seems to know why or what i need to sort this out, does anyone else have thes problems, i'm new to this site so i'm probably posting this in the wrong place but the other posts sounded like they could be related.

[kez]

hi , i've got an se which has extreemly low revsabout 600 at best when starting then once its warmed up its idleing to high arround 1200-1500, it drives fine and there is no vibration except what you would expect from a cold engin getting going without a choke, noone seems to know why or what i need to sort this out, does anyone else have thes problems, i'm new to this site so i'm probably posting this in the wrong place but the other posts sounded like they could be related.

hi emmett welcome to ss

a few more specifics on your vehicle would be great, but could be one of the sensors that control vehicle some that are relative cheap and some not..........so to try and point you in right direction please give full details of vehicle.

a few basic things you could try first are check/clean

throttle body...............clean with carb or brake cleaner check operation of butterfly
maf sensor ...................spray with electrical contact cleaner and allow spray to fully evaporate beffore refit
air filter ..................... check renew if required
idle control valve (IAT).............check pipes to clean valve brake/carb cleaner
map sensor......................clean same as maf

further info on the above is available if you search this site or you get stuck.....maybe worth posting new thread on your issue

these are just a few relitave easy jobs to carry out without going in to any major expense to see if it improves your problem then you can go from there other components etc

if i was you i would post up a new thread rather than trying to revive an old one

[the zohan]

Hi Emmett.

Firstly i would look at the plugs, need to be the right grade of NGK and NGK only - the DI (coil pack) is designed to work with NGK plugs only. Aeros are hard on thier plugs.

[kez]

Hi Emmett.

Firstly i would look at the plugs, need to be the right grade of NGK and NGK only - the DI (coil pack) is designed to work with NGK plugs only. Aeros are hard on thier plugs.

strange one this any one ever got to the bottom of it ? ...........i know iridium plugs can cause issues on different engines but the fact that the b207 factory fit ngk plugs cant be x referenced with say another leading manufacturer denso or bosch of the same spec..... the engine can throw a fit lol its as if it has a human mind

[kez]

^^^^^ i used human mind because it reminded me of my wife/kids dont want that make....want that one lol

[jezz1]

hi , i've got an se which has extreemly low revsabout 600 at best when starting then once its warmed up its idleing to high arround 1200-1500, it drives fine and there is no vibration except what you would expect from a cold engin getting going without a choke, noone seems to know why or what i need to sort this out, does anyone else have thes problems, i'm new to this site so i'm probably posting this in the wrong place but the other posts sounded like they could be related.

When the engine is cold, and the revs are too low, does switching on the air conditioning seem to make it better?

[andy j]

I would defo say air flow meter as this or throttle position sensor cheapest option is air flo meter simple to change aswel