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new engine starts but wont rev up (photo added)


wewsupra

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For the MAF, it might work, but this is definitely not the way you should do it.

image

The MAF should use specific housing made for it. With exact diameter, exact opening for the MAF itself, etc etc etc. The MAF should go to a specific depth inside the housing and so on and so forth... As I said it might work, but it definitely isn't the way I would do it.

Someone with better English might explain it better.

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For the MAF, it might work, but this is definitely not the way you should do it.

http://www.aa1car.com/library/maf_sensor_ford.gif

The MAF should use specific housing made for it. With exact diameter, exact opening for the MAF itself, etc etc etc. The MAF should go to a specific depth inside the housing and so on and so forth... As I said it might work, but it definitely isn't the way I would do it.

Someone with better English might explain it better.

 

thats cool mate, and yes i understand what your saying.

have you got any information regarding the specific depths for the maf ?

 

emperror - this is the same maf as what wew has now. - http://cgi.ebay.co.uk/ws/eBayISAPI.dll?VISuperSize&item=261029218528

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no mate its just oil lol. you had me thinking then.

 

Ok,had it on 400 zoom too.you might want to get a longer bit of silicone hose, the clamp looks like it's holding on for dear life :) good luck with fixing the problem.

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Ok,had it on 400 zoom too.you might want to get a longer bit of silicone hose, the clamp looks like it's holding on for dear life :) good luck with fixing the problem.

 

lol.. yeah mate i noticed it after i took the picture. the clamp wasnt tightened correctly. but now is all on correctly. cheers :)

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right then here is part number 22204 20010 MAF

 

ive read this on a web site about the above part running rich

http://my.is/forums/f114/2jzgte-vvti-maf-407061/

 

some guy put this You can't use GE maf because it has small max flow than GTE one. I think you'll have too rich conditions all time.

GTE sensor p/n 22204-46010

GE sensor p/n 22204-20010

 

but on ebay there selling theses for a supra with the part number i have got

http://www.ebay.co.uk/itm/Toyota-Avalon-Camry-Sienna-Solara-Supra-Lexus-ES300-MASS-AIR-FLOW-SENSOR-METER-/221031817189?pt=Motors_Car_Truck_Parts_Accessories&hash=item337685dfe5

 

http://www.ebay.co.uk/itm/97-03-TOYOTA-LEXUS-CAMRY-SUPRA-GS300-GS400-ES300-AIR-FLOW-MAF-SENSOR-OEM-/320905051283?pt=Motors_Car_Truck_Parts_Accessories&hash=item4ab76e7c93

 

 

in this link this company sell maf for supra

22204 20010

http://www.toyotapartszone.com/oem/toyota~meter~assy~intake~air~flow~22204-20010.html

 

what u think guys this is confusing

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Edited by wewsupra (see edit history)
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The MAF sensor MUST be the matching part number for all the rest of the FI setup, PLUS, you need to understand how it works. If you put the sensor a different distance from the ports to stock it won't work correctly. If you put it in different inmternally sized pipework to stock it won't work correctly. It will even work differently in different SHAPED pipework. So your setup hasn't got a lot going for it. You need to buy the OE pipework and air filter box really. That's aside from any wiring issues it might have. You need to be scoping the ecu signals to the throttle control motor ,and from the MAF sesnor, and to know what the stock signals should look like in comparison.

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right then here is part number 22204 20010 MAF

 

The link that SpeedyAndy game me for the MAF on eBay was on 22204-46010. That's why I said it's the correct one. If your part number is actually 22204-20010, this is definitely not the one for your engine!

 

And except from the Flow Rate, this is pretty good reason why you must use the correct MAF. Taken from the link you gave:

"I think the peep that brought this mod to attention here showed that the GE MAF is not designed with boost in mind, and does not have a buffer/shield/baffle to prevent "reverse flow". The GE MAF is 'blind' to the direction of flow, it just sees flow. So when you blow off, and have pressurized air actually moving backwards in the plumbing away from the intake manifold to escape out of the BOV, the GE MAF sees this as intake air and your OE ECU delivers fuel, bogging you down or stalling you out."

 

 

in this link this company sell maf for supra

22204 20010

http://www.toyotapartszone.com/oem/toyota~meter~assy~intake~air~flow~22204-20010.html

 

what u think guys this is confusing

 

This is because you are looking at US market, and those supra's are NA VVTi. That's why the part number is the same.

Edited by EMPEROR (see edit history)
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The link that SpeedyAndy game me for the MAF on eBay was on 22204-46010. That's why I said it's the correct one. If your part number is actually 22204-20010, this is definitely not the one for your engine!

 

And except from the Flow Rate, this is pretty good reason why you must use the correct MAF. Taken from the link you gave:

"I think the peep that brought this mod to attention here showed that the GE MAF is not designed with boost in mind, and does not have a buffer/shield/baffle to prevent "reverse flow". The GE MAF is 'blind' to the direction of flow, it just sees flow. So when you blow off, and have pressurized air actually moving backwards in the plumbing away from the intake manifold to escape out of the BOV, the GE MAF sees this as intake air and your OE ECU delivers fuel, bogging you down or stalling you out."

 

 

 

 

This is because you are looking at US market, and those supra's are NA VVTi. That's why the part number is the same.

 

neil from derby came today and has given me a MAF 22204-46010 (the gte one) to lend

we have put this maf on with neil there and neil has checked all wires to fuse and all seem to be right

but still its over fueling ,we put the walbro fuel pump on as well still no good

the car revs to 5k ish and bottoms out

i have one cat on it next step to check see if cat is blocked or broke

Edited by wewsupra (see edit history)
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Ok rich told me to say what I've seen and so hear it go's

The car starts and idles fine then when you rev it up to 5000rpm it stats popping and shaking badly with loads of black smoke comin out the exhaust carnt get my head around it

Rich put a video up it would help mate

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thanks jack for looking i sure hope you can fix it

as when i brought engine of yourself only thing thats diffrent would be the vac pipes like u said as we have not touched anythink else

as you was running boost controller and i am not

i got my fingers crossed and everythink else

toyota want 169 pound for vvti air box (from japan)

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What I have found over the net so far:

"If that turns up nothing, try unplugging the MAF sensor in the intake pipe just past the air filter. If the car runs decently with the MAF unplugged (but it'll have a 5k rev limit and won't boost very well) then your MAF sensor is malfunctioning."

This 5k thingy sounds just as my problem. Will try to unplug it and see what will happen.

 

P.S. What oxygen sensor are you running?

Edited by EMPEROR (see edit history)
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hi emperor,

 

I agree its not the boost lines. i followed the vvti diagram for the vacumm lines and If im correct in saying you only blank vacumm lines if you are adding a boost controller due to you trick the ecu ?

 

i did take the first cat off and still done the same.

is the oxygen sensor - that comes after the turbos into the little section of the exhaust before the cat ? or is that the lamber sensor ?

 

VVTI Vacumm diagram - it was one of yourt posts emperor. It show the 1994 GTE engine and also VVTI GTE engine

 

http://mkivsupra.net/vbb/showthread.php?250370-Can-anyone-tell-me-where-do-these-vacuum-lines-go&highlight=vvti+air+pipes

Edited by SpeedyAndy (see edit history)
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