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Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues #

Posted by Paul Howd on December 31, 2008, 11:11 am
Message modified by board administrator January 8, 2009, 7:50 am

Fault code for throttle motor (not a P code) using Hannahtech multiscan.

On arival flap was "stuck" fully open and engine flooded

with flap freed and plugs dried out engine started but would not rev. Further investigation revealed that throttle flap would not move (though, interestingly, operating the throttle would raise speed from idle to around 1800, I gues there is a separate idle speed system on this)

Atempting to drive the flap using the multiscans "Actuator" function also resulted in no movement. though moving the flap by hand proved that the TPS was functioning.

I saw this about a month ago with stuck throttle and heavily gummed up. on that occasion freeing and cleaning sorted it. Now it seems to be a perminant fault (can the actuators "burn out" on these if they stick??)

Now I would have liked to check out voltages/resistances/waveforms etc before sending unit off to BBA (or whoever) but there is a lack of information from the useual sources!

Q1 Does anybody have access to pin/wiring data?

Q2 The EGR system is utterly clogged, is there any need/advantage to dissassemble and clean it (bearing in mind that this would be a lot of work on an old car) or would it be best left well alone?

Q3 Is there any liklyhood that this is an ECU fault rather than a throttle body one? (I have read much on throttle issues on MIT GDI systems but, untill now, I have never actually seen one. As ever it is the LACK OF INFORMATION from you_know_who that is the main frustration!)

Happy (and prosperous) new year all!

Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues

Posted by Tony Sefton <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5581' width='330' height='300' border=0 style='border:none;'> on December 31, 2008, 3:39 pm, in reply to "Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues"

You know Who. ???

Your Not Refering to our old Pal, Nauto-data are you . ??

Your not actually saying that you Excpect Real information for only around "£700" per year are you. ??

come on, don't be silly and go and find some decent info.

p.s. Mike Whitworths had one of these recently and i think he has also bought a High quality reconditioned unit from somewhere. ( just before christamas ) I don't know if hes finished the job yet, but if he's online he might enlighten us.

Tony.

Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues

Posted by Shaun Dale <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2719' width='330' height='300' border=0 style='border:none;'> on January 8, 2009, 8:04 am, in reply to "Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues"

Strangely enough I've had one of these here for a while now (abought 6 weeks I think). After talking honestly to customer about parts prices he bought another car as a runaround (nice guy!).
Any way, I cleaned the body on this one but it would not re-learn, after talking to a dealer tech he mentioned that there is a coupling between the motor (it's actually just a rotary solenoid)and the butterfly that can break. I am going to have another look today to see if this is the case. Will report back later.

Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues

Posted by Gwyn Williams <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5354' width='330' height='300' border=0 style='border:none;'> on January 9, 2009, 12:25 am, in reply to "Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues"
Gwyn Williams

Shaun, I did wonder whether in fact it was that type, you are right, you can take it apart and repair it. One of the 2 magnets will have come adrift and made it very stiff to move. I don' know if Paul's was the same type, but from your description, your's is! Mine was on a GDI Mitsu Pinin, sort of a toy Jeep! I used expoxy resin to glue the magnet back, which is what Mitsu must have used in the first place. You will probably need to reset the throttle pot when you refit. Also watch out for the roller bearing on the tps side, if it drops out, you may lose it. If the thing is totally useless, you have nothing to lose by taking it apart and repairing it, good luck, regards, Gwyn

Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues

Posted by Shaun Dale <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2719' width='330' height='300' border=0 style='border:none;'> on January 9, 2009, 8:18 am, in reply to "Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues"

Thanks for the reply Gwyn,
Unfortunately this one (EAC65-001) has a round magnet, mechanically it is fine but I think the pot is faulty, the output of track 1 seems slightly unstable at WOT on the meter even though it seems ok on the scope.
Paul, what is the part number of your unit?
The throttle flap on mine does not move when revved either, I think that as a GDI it is controlling the engine speed by fuelling and that stratified charge technology is allowing it to run with the lean mixture this would produce.
Regards Shaun.

Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues

Posted by Michael Whitworth <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5568' width='330' height='300' border=0 style='border:none;'> on January 12, 2009, 6:16 pm, in reply to "Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues"
Mike Whitworth - Administrator

Before Christmas I had a 1999 Mitsubishi carisma 1.8 GDi in with a throttle body fault. After confirming throttle body as the fault I removed and sent to BBA for them to recondition/repair it for me. on recieving the repaired unit it was fitted to car but the revs were stuck at 1500RPM and it was flagging code 92(cant remember exact desription but was a tps feedback fault). I checked the output from TPS and compared to a good un which appeared to be OK so I assumed TB still faulty. As luck would have it I had another car here with the same throttle body (this was a 98 spacestar) after swapping the Carisma ran OK.

As it was Xmas eve I couln't do anything till 5th Jan, so sent TB back to BBA which was collected on the 6th recieved it back today and refitted to vehicle which was spot on. BBA said they had found and fixed the fault but I don't know what the fault was.

Credit where its due they did sort the problem but the lost time AND doing the job twice is frustrating and hard to explain to customers.

I have now had several throttle bodies done by BBA and I recenty purchased a Punto steering column after a motor repair failed to fix it (faulty torque sensors in column).

If this throttle body fault is a one off I am happy to carry on Using BBA but if I continue to have parts returned to me that are still faulty I will have to reconsider.

Mike

M.O.M. Miserable Old Manc

Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues

Posted by Shaun Dale <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2719' width='330' height='300' border=0 style='border:none;'> on January 15, 2009, 9:10 pm, in reply to "Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues"
Shaun Dale

Hi All,
Mike, I don't suppose you recorded the tps output values (track 1, track 2)at min throttle and WOT for the good unit by any chance?
Got throttle body back from BBA today for mine but no chance to fit it yet, they reported no fault found but I asked them to fit a new TPS anyway. Will report results on this thread as well as the one I have started for my vehicle.
Shaun.

Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues #

Posted by Shaun Dale <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT2719' width='330' height='300' border=0 style='border:none;'> on January 17, 2009, 9:08 pm, in reply to "Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues #"

Paul if this helps.....
Just connected at first before bolting up. I turned on the ignition and the butterfly immediately initialised from fully open to closed. Fitted unit back on vehicle,started up, worked a treat. The frustrating part is if the TPS was available as a spare I would have fitted one almost straight away.
I measured the TPS as ok, BBA said it was ok, but a new one fixed it.
Shaun.

Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues

Posted by Michael Whitworth <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5568' width='330' height='300' border=0 style='border:none;'> on January 17, 2009, 9:54 pm, in reply to "Re: Mitsubishi Space Wagon GDI 2.3 4G-64 2000 (V) - Throttle body issues"
Mike Whitworth - Administrator

Hi Sean,

I didnt record TPS values but I don't think it is too critical as I have done a few of these now including one that had a new TPS fitted to which was purchased from mitsubishi agent.

I see you have now posted a fix to yours,

All the ones I have done have never needed setting up even though BBA send out a relearn procedure.

Mike

M.O.M. Miserable Old Manc

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