WHY Check engine light off? (blacktop 20v)

[levin818]

No check light? Possible area:
1) Main Relay KO --> due to bad contact that cause arching then overheated then die
2) EFI fuse blown --> SERIOUS TROUBLE! Need to check for the possible short circuit location of your wiring
3) ECU KO --> due to aging (tua). PM me if you want a long lasting (muda) ECU

 

[chinozie]

Wong the ECU trouble detector... :P

 

[levin818]

i've heard about blacktop ECU problem b4..

but this only effect the VVT on/off..

full story here.. Typical Problems of Toyota Corolla Levin / Trueno AE111 20v MAP ECU (aka blacktop)

Sorry i made a wrong comment about BT ECU's component burnt last time.
The component will not burnt, no matter how frequents the VVT get enguage.
The component was burnt due to owner wrongly wire the VVT light.

 

[glanza]

emm..i think the prob is the no1 that sifu levin told..bcoz if u take out ECU relay, the light wil off..check this EFI relay first..rite bro levin? just my 2cents..

p/s-klate alik mano gu? kalu nk mitok tlg pomen pm ambo, saing2 rama klate nun..huhu

 

[levin818]

To confirm whether Main Relay is working or not, you may follow the following steps:
1) Turn ON IG switch
2) Locate "+B" and "E" at your Diagnostic Connector
3) Put a test bulb, or VVT light across "B+" and "E"
4) If Main Relay is functioning, the Bulb/VVT Light will lights up

*Warning: DO NOT short circuit these 2 terminals or you may cause burning on your wiring!!!

 

[bus_3rd]

No check light? Possible area:
1) Main Relay KO --> due to bad contact that cause arching then overheated then die
2) EFI fuse blown --> SERIOUS TROUBLE! Need to check for the possible short circuit location of your wiring
3) ECU KO --> due to aging (tua). PM me if you want a long lasting (muda) ECU

Thanks bro...
anyway..have check...the problem is no.2) EFI fuse blown
after put back efi fuse then the check engine is ON :proud: ......BUT.....its no last longer..
when engaged the switch on...efi fuse blown again...try it about 2-3 times...same..efi fuse blown..

is it something wrong with my fuel pump?

---------- Post added at 12:32 AM ---------- 6 hour anti-bump limit - Previous post was at 12:24 AM ----------

emm..i think the prob is the no1 that sifu levin told..bcoz if u take out ECU relay, the light wil off..check this EFI relay first..rite bro levin? just my 2cents..

p/s-klate alik mano gu? kalu nk mitok tlg pomen pm ambo, saing2 rama klate nun..huhu

kelantan at kb bro..ur pomen in what area?wats name?

translate
*klate aloh kb la kito..pomen demo alah mano?namo gapo?

 

[ragerunner]

I think it's similar to what I had experienced before. Sifu Levin818 saved me then. Basically your engine is cranking but not starting right?

IIRC what I did was to check the fuse relay box (is that what you call it?) in the engine bay, the larger one. Look for the EFI fuse (15A if I'm not mistaken), make sure that the fuse is not burnt and make sure that the contact is good. For my case it was probably loose contact.

Anyway you seem to have "caught the worm".. Good luck getting rid of it. Feel free to ask any of the sifus here especially levin818, I'm sure they'll do their best to help.

 

[D7zul]

Sorry i made a wrong comment about BT ECU's component burnt last time.
The component will not burnt, no matter how frequents the VVT get enguage.
The component was burnt due to owner wrongly wire the VVT light.

serious?

u should delete the blog..

 

[chinozie]

serious?

u should delete the blog..

Wow !...newbie !!!
just registered and say things like that ???!!!

Levin818 already said sorry, as well all learn as we go...plus that web page belongs to one of our friend and not him...who has contribute much in 4AGE world...it's well known among other Toyotarianz , Globally...! why should delete it rather then fix it ?

Soo please...Don't be so ignorance...

 

[D7zul]

Wow !...newbie !!!
just registered and say things like that ???!!!

Levin818 already said sorry, as well all learn as we go...plus that web page belongs to one of our friend and not him...who has contribute much in 4AGE world...it's well known among other Toyotarianz , Globally...! why should delete it rather then fix it ?

Soo please...Don't be so ignorance...

Sorry about that..

what i meant was.. if the information is not accurate, u shouldn't put it online.. coz lots of people nowadays refers to blogs like this for information..

my comment is not just for me.. but for other Toyotarianz out there..

 

[levin818]

The blog created by Acoustic (Chin) who now no longer messing with 4AGE.
(Probably now have fun with 12-throttles in China!)
I can't get hold with him since he left MY...

---------- Post added at 12:22 PM ---------- 6 hour anti-bump limit - Previous post was at 12:16 PM ----------

bus_3rd,
EFI fuse blown mean you have a SERIOUS TROUBLE on your wiring, or some of the item!
You need to enguage a good wireman to find out which wire/item is short circuit to car body.
After finding the culprits, then only you can plug back the EFI fuse.
Before solving the problem, the more you blown the fuse the more you damage the wiring.
At the end, you might need to replace the whole wiring...

 

[D7zul]

ok then..

Mr Levin818, i notice that u location is in S.Alam..

my house is at sec24..

whenever u free.. mayb we can teh tarik anywhere?

my treat

 

[levin818]

ok then..
Mr Levin818, i notice that u location is in S.Alam..
my house is at sec24..
whenever u free.. mayb we can teh tarik anywhere?
my treat

That very near, less than 10 mins can reach huhu..
Lets call for a TT at Shah Alam :)

 

[D7zul]

That very near, less than 10 mins can reach huhu..
Lets call for a TT at Shah Alam :)

Great idea..

any location u prefer?

last time got a few SEG gathering near i-City.. didn't join them coz my car was in wshop..

i'll call them to join too

tomorrow nite perhaps?

 

[levin818]

No poblem! But lets start up a new topic on the TT issue.