Very Big Problem...please Someone Help

[vaz]

Can someone please help me!!!! :( i am very tensed at the moment and partially very annoyed as well . i have a import celica 3S-GE & i'm from warrington. at the moment performance wise i have a K&N induction kit and a Rage SSX-50 back box.

i dont know wat the hell has happened to my car but it has lost loads of power... when the car starts off , u can hear the exhaust rattle under the car and its like the whole car vibrates!!!! it has lost loads of acceleration. i have also got it decatalysed. my car wont run off the mark... its like it really struggles to gain the accleration.. its nothing due to the decat cuz this was happening b4 dat..

i have been to a few places but they cant find da !Removed! problem.. i went to urban racing but no luck.i even went to toyota garage in warrington& they sed nuthing came on their computer, they sed dat they can only diagnose some of the car as it is an import and they are not allowed to diagnose the whole thing.. i also went to car planet but they sed that they can book it for next month. i think ive been everywhere in warrington.

can some one please help me and tell me where i can get my car fixed from,,places in warrington and someonie near there as well...actually tell me anyuwhere and will try and go... im getting really sick of it and noone seems to know the oroblem. they are all stunned like me myself.

apparently toyota sed go to someone who can diagnose an import car

any ideas???? please help me!!!! :(

[pedro7680]

funny you should say that!

mines is a 1991 import too,

and ever since toyota replaced the original performance backbox the car lost loads of power.

my powerflow system also rattles like hell. and im usuing the blitz induction kit.

dont know what you can do mate

[Calisto]

Good Morning vaz and welcome :group-cuddles: to TOC

Sorry to hear about your problem, I live in Rochdale and like you not many garagres will touch imports.

My best advice would be to take her to the local Japanese importers and let them have a look at her.

Some one will be along later today who might be able to help solve the problem.

[Leeky]

In order for a normally aspirated car to run properly you need a little back pressure. By removing your cats and making the exhaust outlet bigger you have most likely gone past the point of a performance gain and gone into the zone of little or no back pressure.

Just to test the theory if you get someone to start your car up and place something over the back of the exhaust with a smaller hole (could use an old sauce pan with a hole drilled in the centre - just off the top of my head) very tightly you should find the car will rev easier.

also by the way are you using normal 95 unleaded? Jap cars run on 100+ron fuel in jap land so you might want to try some optimax B)

[pedro7680]

In order for a normally aspirated car to run properly you need a little back pressure. By removing your cats and making the exhaust outlet bigger you have most likely gone past the point of a performance gain and gone into the zone of little or no back pressure.

Just to test the theory if you get someone to start your car up and place something over the back of the exhaust with a smaller hole (could use an old sauce pan with a hole drilled in the centre - just off the top of my head) very tightly you should find the car will rev easier.

also by the way are you using normal 95 unleaded? Jap cars run on 100+ron fuel in jap land so you might want to try some optimax B)

thats interesting!

i never thought of that,, my backbox is about 6 inches,, i took it a bit too far i know, but it does sound sweet, and backfires on the motorway at 2000 revs when you come off the power.

[Dan_Q]

I have a straight through japspeed 3" mackbox on mine-

the low down torque has dwindled quite a bit, but she "seems" free-er revving at the top end, but that could be placebo effect TBH

I suggest revvin up to 5K rpm and side steppin the clutch

[vaz]

thanks a lot guys but when u say local Japanese importers, do u mean garages that sell cars....does anyone know any garages where i cud take my car to....possibly near warrington, if not anywhere...im getting ****** off..

no the loss of power has got nothing to do wiv da decat as it was doing dat b4....i took da car to urban racing and dey sed da problem might be becuz of da catalyst converter...so dey sed dey wud decat it...when dey got to work they sed it wasnt the cat but i still got it decat anywayz....

my car was running fine wiv da exhaust and induction kit before... but now it just struggles and splutters to go ...obviously its faster then normal standard cars but for its own specs its travelling like 90 bhp.....

by da way if this is any use its a 1994 celica 3S-GE

[Leeky]

Reset your ecu as it may have adjusted incorrectly to the diffrence in fuel/air mixture

Under the bonnet lift the top of the black plactic fuse box.

On the underside of the lid it will tell you which fuses are which.

I sually remove the one marked EFI and the one marked ECU for approx 20secs - 1min to be sure

[daktari]

When the garage "de catted" it, did they put a purpose made de-cat pipe on, or just chisel out the old cat? Could be it`s still partially blocked.

[vaz]

ok heres three annswers in one go, haha....lolz!

first of all thanks alot leeky as dats wat urban racing sed...but i didnt have a clue wot da ****** da woz....ill try doing dat

secondly i use optimax fuel sometimes but not all the time cuz its too !Removed! expensive

and thridly as i sed my cr was decatted aftert dis problem and its still da samee.but anywayz they decatted the car and replaced it with a stainless steel bar

but then again i am still suspicious that i might be something blocked in the engine anywayz!!!!!!!!!!!

oh yeh just incase none of this works(it better do though cuz im getting ****** off) any garages that can sort this problem out????

[vaz]

hey man i took out da ecu and efi which made a bit of a difference but not everything...anywayz i booked it wiv camco now...but guess wat...

after taking them out and putting da fuses bak in my car keeps on stalling and just looses power....it wont start now...its just lost power like....at the moment i wont start.....its happeneing aftert i took the ecu and efi out........

now wat~????

[arpuS]

I can answer this one!!!!!

I had the same problem with my st185 a short ehile back. I looked high and low for the problem. then someone suggested changing the spark plugs. i did and problem solved. seems if u increase the air/feul mix, the temp in the chambers rises, and the normal spark plugs burn/melt so not producing a proper spark. I put some higher temp plugs in and all has been well since. better if anything.

hope that helps u vas.

tony

[Spartan]

I doubt the problem will be due to lack of back pressure, the manifold still produces quite a bit of pressure for scavenging.

Again the increased mix and burn wouldn't be enough to melt the plugs, I haven't ever heard of someone melting the correct plugs on a NA car without altering the compression ratio.

Related problems on the same line could be:

Badly sealed, blocked exhaust, you might not notice because of the extra noise of the back box and decat.

(although these will warrent a reduction in power, not to the extent you are noticing.)

I take it NA ST185's still use a MAF sensor, is this working? A quick test is to pull the plug on them and the engine should stall (works with Fords and Scoobs so might work with Toy's).

Like mentioned allready your spark plugs could be goosed for any number of wear and tear reasons.

Resetting your ECU is a deffo must do. I'm nearly completely ignorant of the Celica's ECU but I'm presuming Toyota follow the norm. So, when you plg everything back in, gradually increase and hold the RPM's till about 3k. Once at 3k take her out for a spin. If you want the best performance for your car use the fuel you would normally use, in your case 95 unleaded and drive the !Removed! off the car. This is supposed to give a little extra performance to your car. Although more than likely it will increase your MPG. Try do some varied driving in between the thrashing, like stop-start and going up some local hills.

Works for Ford's and Subaru's, might not work for Toy's though.

Other causes of lack of power could be, fuel filter, borked lines or pump. Clogged injectors, knackered HT leads or a Fubar'd coil pack and so on.

Hope you find it soon!

[Spartan]

So you pulled the fuses, and left them off for up to 30 mins, put it back on and it doesn't start?

Bizarre, does the starter crank? Does the starter crank and the engine tuen over but not fire?

[arpuS]

spartan... how can u tell a celica driver that has had, and rectified this problem that vAZ is having, that the correct way to fix the problem is how the person who had the problem fixed it....

go play with ur starlet.

tony.

[Spartan]

Whoa, no need to throw our toys out of the pram. I can offer advice because it's an engine. Most internal combustion engines work the same way and can have the same problems.

I wasn't having a go at you, but melting your plugs by fitting a back box and a filter isn't going to happen.

I've had many cars and all of them have had similar problems with running problems. Yes I have a starlet, I also have a Focus and a XR4i. I could also have a GT4 but couldnt find one in decent condition that fitted my price range, so I'll go back to saving and looking.

His problem could be caused by a myrid of things, I was helping him.

[vaz]

YO YO YO YO GUYZ thanks a lot for ur advice..... i found out the problem but now ive got an ever bigger one......

ii took it to camco (warrington) and they checked everything and they sed that the engine has lost compression!!!

yeh man the engine has lost compression so now i need a garge who can take out the engine and fix this....

any ideas of garages in warrington???

has to be in warrington as i have to tow the car

[Spartan]

Ouch, yeah that will do it.

Sorry to hear that bud. :(

[gt4god2ulot]

toyauto centre @ nottingam 01159 787844 ask for ian ;) or visit the website

www.toyautocentre.co.uk B)