Please Help! Rb20det Flooding.

[1990 GTS-t m]

hi guys

my gtst is flooding so bad that it won't start. been reading the workshop manual and searching this site but can't figure it out.

What happend:I was warming it up one day and it stalled, tryed restarting it but it would just cough. Turns out it was getting way to much Fuel (not sure why), managed to push start it and blow out all da extra fuel and was all good for 10 days or so.

Then on tuesday about 3 hours after i drove it i went to start it and it flooded again. Everything is the same as when it was going that i no of.

The ecu is showing 12(air flow meter) i have tested it on another car and is fine, have also tested the wiring for the afm.

Have tested water temp sensor,fuel press and both are good.

Its cranking but wont fire, its getting so much fuel that its now pushed fuel passed the rings and is now in the sump.

the injectors sound like they are opening and closing(ckick click...).

Am lost, sez afm but it seams fine and its getting WAY to much fuel.....???

please help/ideas its driving me CRAZY!!!!

thanks.

ps sorry bout the spelling and not sure if this is the right place for this.

Edited November 20, 2005 by 1990 GTS-t m

[blind_elk]

Have you had the injectors cleaned recently. If not, then it may be caused by some gunk holding the injector partially open all the time.

If it floods, there are 2 things to do. Either crank with WOT (this allows plenty of air in to burn with the fuel) or remove the fuel pump fuse and crank until the engine "kicks", then replace the fuse.

[The Dan]

Test the coolant temp sensor

[T04GTR]

replace the coolant temp sensor

[1990 GTS-t m]

If it floods, there are 2 things to do. Either crank with WOT (this allows plenty of air in to burn with the fuel) or remove the fuel pump fuse and crank until the engine "kicks", then replace the fuse.

What is "WOT"

Is the coolant temp sensor 1 of the 2 comming of the top pipe?

If so have tested both of them and compaired them with my gts and they read the same. Could it still be buggerd even if they are reading the same??

thanks

Edited November 20, 2005 by 1990 GTS-t m

[blind_elk]

Wide Open Throttle.

There are 2 coolant temp sensors. They are located in the pipe off the top radiator hose. The 2-pin one is for the ECU, the 1-pin one is for the gauge in the instrument cluster. You really only need to wory about the 2-pin one. If you have a GTS as well, and you know the GTS is OK, then you could swap them over and see if the problem continues.

[The Dan]

Wide Open Throttle.

There are 2 coolant temp sensors. They are located in the pipe off the top radiator hose. The 2-pin one is for the ECU, the 1-pin one is for the gauge in the instrument cluster. You really only need to wory about the 2-pin one. If you have a GTS as well, and you know the GTS is OK, then you could swap them over and see if the problem continues.

<{POST_SNAPBACK}>

Incorrect. The larger one is a coolant temp sensor. The smaller is a temp sender.

They are different and both have different functions.

Edited November 20, 2005 by 3lit3 32

[1990 GTS-t m]

ok thanks will try the wot with the fuse also out 2moro

[B0oStEr]

If you have a multimeter check the ohms between the two pins.

When cold at 20degree C it should read about 2500 ohms.

Personally though I'd still suspect afm issues.

Intermittent afm problems seem to be a common thing.

[1990 GTS-t m]

yea i think afm to but am willing to try anything. yea i got around that (2500) the other day. If it was the afm could it be causing it to flood all by its self(atm)??

[1990 GTS-t m]

yea i think afm to but am willing to try anything. yea i got around that (2500) the other day. If it was the afm could it be causing it to flood all by its self(atm)??

[1990 GTS-t m]

Well its off to the shop on wenesday for some falt finding, hopefuly they can get to the bottom of this cos i sure as hell can't!!!

Thanks for all your help and keep it comming if anyone has any other ideas otherwise I'll let you no what the out come is.