16v vitara or escudo in CHCH

[BlakeJ]

hey lads, having issues with the new g16a in my samurai, idle around 2000rpm and really rich, no diagnostic plud and my engine check light i wired in doesnt seem to be working, im think maybe either throttle position sensor or airflow meter, both of which have been pillaged from the escudo at pick a part, anyone want to let me do some part swapping for ten mins so i can eliminate or identify my problem, would be a big help.
cheers
Blake

[Tarmac]

I thought this was running sweet? is this a new prob. Happy to offer my amature 2c if your keen

[BlakeJ]

it was always running a bit rich and idling high, then it went into limp mode for a bit, then i unplugged the dash and it went out, but every now and then its hard to start and still idles high, tus played with some wires behind the dash and it went right for a bit then went shit again, wiring aint my forte, tried to see if something is earthing out somewhere but cant see anything. Any help would be greatly appreciated, always keen to share a beer and spin shit suzuki yarns

[4wdRick]

Neither the TPS sensor or the airflow will so this, it is most likely to be either a intake leak, the idle speed controler (not working or gummed up with crap) or the throttle butterfly not seating properly, start with the intake (easy) spray carby cleaner aroung the intake system (not in it) if the revs come up you have found the leak, then check and clean the other 2 with the rest of the carby clean.

[BlakeJ]

cheers for the help rick i will try that tomorrow, i heard that the if the tps is not right it will advance the timing and increase idle speed, is this wrong?

[BlakeJ]

righto pulled the ICV and yea its pretty gunked up, will give it a clean in the morning, also noticed that there intake by the butterfly is press gunky, if i open it and stuck my finger in its black and oily, is this something to be worried about?

[Rotazuk]

Why does the engine check light not work ? Wrong wire ? How did you wire it up , ie did you put power or earth to the otherside of the bulb ? I will have to check the wiring diag to see what way it should be , can't remember and don't want to put you wrong .

Chris

[BlakeJ]

hey chris. ive just soldered the ECL wire and an earth wire to a spare globe from the escudo dash, rather than having it actually in the circuit board

[Rotazuk]

Ok . The engine check lamp wire should be A14 and be a violet/Yellow wire . This needs to be connected to a bulb and then to positive . The ecu puts out an earth to get the light to come on .

This should get the light to come on when the ign switch is on and go out once the engine is running . If the light is on with the engine running something is wrong .

Then you need to find the wire A17 , this is blue/yellow and earth this with the ignition on . The light should then start to flash the codes if it thinks there is a fault . The A17 wire will be with 3 other wires marked Diag plug , hopefully I labeled each one .

Chris

[BlakeJ]

cheers chirs, i had the engine check light wired as the ecu switched by power so ill change thhat around. This is not the case for the vss tho isnt it, that should be earthed and power comes from ecu, as this is how i have it.

Also sorted the high idle, as rick suggested it was the air idle control valve, water was not passing thru it as it was more blocked up than my ass last sunday morning, good blow out and it was all good, will run some radiator flush thru the whole system tonight.

next up some minor rust repairs, front and rear bars, then a warrant and hopefully some wheeling

[BlakeJ]

well got the CEL working, some things up, i get these codes

14-Water Temperature Sensor, WTS signal High,Open circuit sensor or bad ground

21-Throttle Position Sensor, TPS signal High, TPS faulty or open circuit signal or ground connection

23-Air Temperature Sensor, ATS signal High, ATS open circuit or bad ground

24-Vehicle Speed Sensor, VSS faulty, Broken Speedo cable (probably cos last time i drove it the speedo cable was disconnected

33-Volume Airflow Sensor, Volume Airflow Sensor too High or too Low, Airflow sensor faulty or faulty wiring

Bad ground somewhere maybe, damn computers

[Rotazuk]

Thats a good list
Can't remember on the vss and the brief wiring diagram I have does not show , lost everything off the computer the other week so will go and search the fill diagram and have a look .

I would disconnect the battery for a while and then reconnect and check the codes again . (you probably already did ) but if you had the ign on while you disconnected these plugs etc it could have remembered these . Hmm can't remember if its clever enough to remember them , only one way to find out .

Still good place to start and then look for whats common to them all . They can't be all faulty surely .

Chris

[BlakeJ]

yea cheers chris i was being a retard, hadnt disconnected it for long enough, its reset now and i just get code 12 which is no fault so all good, just need to figure out why my fuel level and dash temp guage arent working then the dash is going back in