Needing some Information

Re:Needing some Information (Absy)

Fri, 21 Sep 2012 23:13:34 GMT

True it does make a very nice, BUT with it, the WoT sound gets quietened a lot with a better flowing exhaust, the stock manifold (headers) are said to flow pretty good as is. I know this from my last car aN13 pulsar, dropped a pod on ... loud WoT sound .... gave it an exhaust, quitened the WoT but increased the power greatly ... ... the main reason I will be doing the exhaust, is because the bowl is swolen, and choking the engine some ... bigger is better .... Have heard another MR2 from the guy that has reccomended this place to me (jumping subjects pretty bad, sorry, tired) and I heard it running on his ... rather nice and breathed well.

Anyways, will talk more ... when im not so tired.

Re:Needing some Information (Tree)

Fri, 21 Sep 2012 13:30:24 GMT

Well AFM or air temp sensor or MAF or MAP either way they all ultimately measure air flow regardless :/ we're just being touchy technicals haha
WOT - waste of time. Cars...

Re:Needing some Information (purple5ive)

Fri, 21 Sep 2012 08:33:06 GMT

/\ yes WOT is exactly that Pedal to Metal etc etc lol
and silly me for suggesting the afm, i could have sworn my N/A had a AFM but its been a while now.

Re:Needing some Information (Dudeman)

Fri, 21 Sep 2012 00:54:39 GMT

^ Nothing to do with Captain Sensible and 1981?

Re:Needing some Information (Dudeman)

Fri, 21 Sep 2012 00:25:35 GMT

Here's a dumb arse question that I have been wondering for a while.. 'WOT' - is that 'Wide Open Throttle'???

Re:Needing some Information (Tree)

Fri, 21 Sep 2012 00:22:17 GMT

Yeh pod makes awesome WOT roar, screw exhaust I say lol (4 banger NA sound crap imo)
$400 not bad. Including manifold? Wait Northside? Just beware we have a member on here that had bad experience with them, just letting you know whether you decide to do it or not.
MR2 was destined for that 2GR!

Re:Needing some Information (EssDub)

Thu, 20 Sep 2012 23:28:32 GMT

10 Bucks says you have either a bad earth, or the gearbox earth is not connected correctly.

Re:Needing some Information (Absy)

Thu, 20 Sep 2012 22:16:44 GMT

Ahhhh.... Air Intake Temp sensor, ... hmmm would have thought he would have meant the throttle position sensor as that does basically the same thing as an AFM, but not as accurately, whereas the air intake temp sensor is totally different.... neither here nor there. I have dropped a PoD finter on mine and plumbed the vaccuum and AIT sensor both into it, runs so much better I found, has a nice growl through the intake, but I need a bigger exhaust which will quieten it down some. Heard of a guy on the northside here in bris that does nice full sytem for these including high flow cat for $400 ... so when I recover from the trauma this recent event has done to my bank account Ill be looking into getting one made up.... and hopefully soon enough will have a full running gear / exhaust / and harness + ECU for sale .... after I buy the 2GR to replace it that is, any volunteers to help fit it when it happens?? ..... bound to be lots of fun ... promise :D

Re:Needing some Information (Tree)

Thu, 20 Sep 2012 21:30:59 GMT

Glad it's running better now, when everything gets sorted out it's very hard not to be pleased by the driving feel of this car :)
My knock sensor literally "fell off" when I had a major service on the engine, looked as tho it passed thru hellfire hehe.
This is the air temp sensor we are referring to aka "AFM" (but not AFM)
http://www.toyodiy.com/parts/p_J_1990_TOYOTA_MR2_SW20-ACMQF_8404.html?hl=89424
It's attached to the air box, you'll see wires (2 colour?) going to it. As Reddtarga pointed out it looks the same as the one stuck on the lid.
RedMR2Red it was very annoying limping the car whenever I put too much throttle because once the RPM bogs down you have to feather the pedal again until it seems to "unflood" itself. My mate couldn't take it and quickly decided who was master. After a bit of resistance from the car it finally broke (like breaking a stallion) and I've had no problems since hehe

Re:Needing some Information (Absy)

Thu, 20 Sep 2012 19:03:37 GMT

well fixed the "hesitation" ... not even thinking about it before this morning I woke and found myself saying ... "hmmm, I wonder if it's the HT leads" ..... so I pulled the new ones I recently bought, off my old engine, dropped them onto the new one .... hey presto .... works nicely. as for the Knock sensor, the mechanic had an apprentice working on my car, he broke it (the connection off clean) , and didn't tell anyone.... the air temp sensor under the lid, is basically only there for the engine bay fan (according to the electrical schematics I have read).

So to sum up, it is now running nicely, from the very short drive I got to take it for after fixing the last of it at work, the only bits and pieces left is this odd reverse light not working, (turns battery and oil fill lights on (in dash)) along with very lightly illuminated battery and oil fill lights... and the engine bay fan, seems to be getting stuck somehow, I am definately leaning toward a bad earth in the circuit there somewhere...

Thanks all for the prompt answers, has definately let me "vent" and given me a lot more ideas towards these problems I have been having. I hope I do not need to ask too many questions, and can start giving some answers instead.

:D

oh ... as for the AFM I would think he was reffering toward the throttle body and throttle position sensor.

Re:Needing some Information (REDMR2RED)

Thu, 20 Sep 2012 18:03:09 GMT

The 1990 SW20 NA has a computer controlled knock sensor that adjusts itself to the fuel you are using. This only happens when the engine Revs beyond 5K rpm and takes about 3 or 4 times to adjust correctly. If you have, as you say, only reved it to 4K rpm then the knock sensor has not adjusted correctly. As Tree says problem went away after a few (probably spirited) drives ..... ;-)

Re:Needing some Information (Tree)

Thu, 20 Sep 2012 10:50:41 GMT

Yeh the N/A Gen 2 3SGE doesn't use AFM. I've tried unplugging the air temp sensor when I had a Gen 2 N/A and didn't do much no fault codes or anything. If anything might be slightly richer.
I had exactly the same issue with your hesitation after my engine swap, anything more than 1/4 throttle it would bog down. At WOT it would just stall (or very close). Very annoying lol. Problem went away after a few drives and I added fuel injection cleaner which helped I think. I'm guessing changing the fuel filter would also help if you haven't done that.

Re:Needing some Information (Reddtarga)

Thu, 20 Sep 2012 10:16:56 GMT

If this is a Gen 2 NA that we are talking about as you stated earlier.

The '90 model NA does not have an AFM, it uses MAP. (see pic)
When you say AFM, are you talking about the air intake sensor that sits in the top of the NA airbox? (It looks just like the temp sensor mounted in the engine lid). If so, that would not have much effect anyway on the problems you are having.

Re:Needing some Information (purple5ive)

Thu, 20 Sep 2012 08:20:46 GMT

im leaning towrads your afm for the hesitation specially now because you have a new afm that could be a dud, put the old one back on and see if the car drives any better

Re:Needing some Information (Absy)

Wed, 19 Sep 2012 21:08:03 GMT

No error codes are coming through, could possibly be the AFM, I do have my old one also, I may try it, am also going to ring the guy I bought the engine from tomorrow to see if he took the intake manifold off to remove the wiring, as I bought it without harness. As for the lights, I am so not sure I was thinking maybe a fuse?... is there even a fuse for solely the reverse lights? ... this matter I am more leaning on a bad earth .... but where ...