ideal at 2k rpm and Loss of Boost after jdm swap

[ehletitrain]

1987 supra

i bought a jdm 7mgte with aem cams, larger head. a mechanic at this shop said he could do the swap in a day. i leave the car there and i dont hear back from here till about 3 months and i got the car like this

as far as what i can see , the wiring was cut and some sensors were replaced.

my issue: the car ideals at roughly 2000 rpm and when i begin to build up boost , it all drops to 0 and does not build back up. also when it drops to 0 it makes a weird sound like if air is coming out of a tube then someone puts there hand on the end of that tube. also the temp gauge is not working.

has anyone experienced these issues before. if so what do you recoment i do.
i heard if i hook up a ideal control sensor from a 91 cressida i would be able to control the ideal and drop it down to 800 rpm at least

but everything else looks hooked up right..
heres a video of what im seeing



http://www.youtube.com/watch?v=Wq0_e3-dy5A

 

[gaboonviper85]

For starters you need to check codes....you also need to do a boost leak test...

Check codes and get back to us!

 

[ehletitrain]

thank you im going to do that. im looking through the tsrm how to check the codes because i dont know how

 

[ehletitrain]

i got code 51 and 52

 

[Poodles]

Well, as your gauges aren't showing vacuum, the lines aren't connected. Orrrr, you have a massive vacuum leak which would also cause the high idle.

 

[gaboonviper85]

Make sure your ac system is turned off on your heater control as it will throw a code 51....51 also generally means a problematic throttle position sensor (all kinds of problems fallowing)....

Code 52 is your knock sensors codes...either your are knocking or they need rewired (happens alot)...

Adjust your throttle position sensor per tsrm and then reset your ecu and go for a drive....check codes again.

 

[ehletitrain]

how exacly to i "Adjust your throttle position sensor per tsrm and then reset your ecu "

i looked and looked and i cant find where it says how to do this

 

[Letsride]

Try this....>>>

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=101

 

[ehletitrain]

alrighty so i tried that right now since i was working on the car right now any who. and now it started jumping from about 1300-1500 rpm to 2000 rpm.

 

[Letsride]

You did do this with the engine off....right?

LOL...did you reset the computer again?

 

[Poodles]

Try this....>>>

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=101

That's to inspect, to actually set it: http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=103

 

[ehletitrain]

yes of coures haha

yes reseted the engine sir


thank you

 

[Letsride]

Was it within range?

 

[ehletitrain]

yeah it was fine. also i was going to check the codes, see if anything new popped up and the engine light is blinking now

 

[ehletitrain]

it ends up that we were all wrong:nono:

it was the ics. i replaced mine with a 91 cresseda and pow. fixed :naughty:


thanks guys

 

[grimreaper]

does the oil pressure gauge work? was that a cold start?

 

[ehletitrain]

yeah the oil pressure works and yes it was a cold start

 

[jetjock]

In the interest of accuracy...

Code 52 is your knock sensors codes...either your are knocking or they need rewired

There's no way code 52 can be caused by knock.

...you have a massive vacuum leak which would also cause the high idle.

Induction (vacuum) leaks in Type L EFI systems do not result in high idle.

 

[Bri7man]

Sounds like you got it figured out?

Grammar lesson for the day!!

Engine idle is spelled like so, not ideal.

Ideal would be used like....

It is ideal to check engine codes at the source of a problem. :icon_bigg

 

[ehletitrain]

In the interest of accuracy...



There's no way code 52 can be caused by knock.



Induction (vacuum) leaks in Type L EFI systems do not result in high idle.

wow we got schooled :biglaugh:
thanks man

what would of cause 52 and 51 then?