| 4G91T got check engine light problem... | |
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ham_m2 REGULAR
Countries/State : Age : 34 location : Klang Tag ID: : SFC02493 Points : 12493 Reputation : 3 Number of posts : 443
| Subject: 4G91T got check engine light problem... 1/11/2009, 3:41 pm | |
| Hi fella members...My friend own a wira 1.5.Now using 4G91 bolt on turbo using GSR turbo kit.It was ok until now...Suddenly one morning i start to use,the check engine light still goes on when the engine is already start...After 15 minutes of warm up,the check engine light goes on...my friend sent the car back to the mechanic and he change the air flow sensor...The problem is solve for a while.Now the light goes on back and it jerks everytime the light is on.my friend sent back last wednesday and the car is still having this problem. Do you guys have any idea? The car spec: 4G91 GSR turbine wiring evo 3 air flow sensor evo3 |
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Nieto ADMINISTRATOR
Countries/State : Age : 36 location : Kota Kinabalu Tag ID: : SFC 01287 Points : 13969 Reputation : 34 Number of posts : 5595
| Subject: Re: 4G91T got check engine light problem... 1/11/2009, 4:52 pm | |
| try to diagnose by scanner or jump wire. maybe the wiring harness also have a problem. |
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boy4509 FRESHIE
Countries/State : Age : 39 location : KK Points : 11082 Reputation : 1 Number of posts : 73
| Subject: Re: 4G91T got check engine light problem... 1/11/2009, 5:08 pm | |
| Agreed..easier to use efi diagnostic mode rather than guessing |
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ham_m2 REGULAR
Countries/State : Age : 34 location : Klang Tag ID: : SFC02493 Points : 12493 Reputation : 3 Number of posts : 443
| Subject: Re: 4G91T got check engine light problem... 1/11/2009, 5:17 pm | |
| the problem is that the car is rojak...so a computer cannot detect its problem code... |
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Nieto ADMINISTRATOR
Countries/State : Age : 36 location : Kota Kinabalu Tag ID: : SFC 01287 Points : 13969 Reputation : 34 Number of posts : 5595
| Subject: Re: 4G91T got check engine light problem... 2/11/2009, 12:43 am | |
| i think u have to check the wiring harness. |
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boy4509 FRESHIE
Countries/State : Age : 39 location : KK Points : 11082 Reputation : 1 Number of posts : 73
| Subject: Re: 4G91T got check engine light problem... 2/11/2009, 1:24 am | |
| if the ecu is able to lit check engine light warning it must've detect the problem and register the error code u just have to pull it out from the ecu..if it was a toyota engine there is a diagnostic plug where u simply connect jumper wire between certain pins n read the code by observing check engine light flashing in a certain time interval; cross ref. from toyota engine manual to know the error..even if the engine is rojak 1, at least u know where to start..for 4g91 u have to search the manual 1st tho =)
i think i'll inspect the induction system first, AFM, TB, PCV hoses, plug, cables etc..cheers |
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Nieto ADMINISTRATOR
Countries/State : Age : 36 location : Kota Kinabalu Tag ID: : SFC 01287 Points : 13969 Reputation : 34 Number of posts : 5595
| Subject: Re: 4G91T got check engine light problem... 2/11/2009, 1:35 pm | |
| 4G91 also have diagnostic code, also can jump on the diagnostic socket. i have the code but not with me now. is an OBD1 type. |
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ham_m2 REGULAR
Countries/State : Age : 34 location : Klang Tag ID: : SFC02493 Points : 12493 Reputation : 3 Number of posts : 443
| Subject: Re: 4G91T got check engine light problem... 16/11/2009, 5:32 pm | |
| since the wiring is using evo3 the computer cant recognize any error code... |
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boy4509 FRESHIE
Countries/State : Age : 39 location : KK Points : 11082 Reputation : 1 Number of posts : 73
| Subject: Re: 4G91T got check engine light problem... 17/11/2009, 12:24 am | |
| if the check engine lit up it means error code is registered (same wiring same comp box) no? hmm need to ask mitsu sifu around.. |
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jeffayn FRESHIE
Countries/State : Age : 44 location : Setia Alam Points : 10882 Reputation : 1 Number of posts : 10
| Subject: Re: 4G91T got check engine light problem... 30/1/2010, 10:59 am | |
| no guessing work when it come to a red light.. just send in a workshop with scanner and you need not to guess anymore... |
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RedDevil FRESHIE
Countries/State : Age : 40 location : Kekey Website : Google Points : 10784 Reputation : 1 Number of posts : 12
| Subject: Re: 4G91T got check engine light problem... 18/2/2010, 5:10 pm | |
| My cousin face the same problem last time..but the diffrent is, he using 4G93T engine and original wiring harness..after change the computer box, problem setel, no more jerk and engine check on.. just my 2 cents..cheers.. |
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ham_m2 REGULAR
Countries/State : Age : 34 location : Klang Tag ID: : SFC02493 Points : 12493 Reputation : 3 Number of posts : 443
| Subject: Re: 4G91T got check engine light problem... 17/3/2010, 12:24 am | |
| the car is currently not under my guard... but the problem settle as the computer blow one day... change new one ok already... |
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weisonme FRESHIE
Countries/State : Age : 46 location : Ampang Points : 10602 Reputation : 1 Number of posts : 1
| Subject: Re: 4G91T got check engine light problem... 19/5/2010, 4:43 pm | |
| Can anyone share is installating a HKS grounding cable helps reducing fuel & increase perfromance ? |
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| Subject: Re: 4G91T got check engine light problem... | |
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| 4G91T got check engine light problem... | |
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