Toyota MR2 Message Board - General Maintenance

Won't stay idling

mk15mr2 — Thu, 19 Nov 2009 01:13:01 GMT

So my car won't idle below 1500rpm. was sitting for years, Sometimes it will idle that high and stay for a while then it will slowly drop and die. I can give it a little gas to keep it running. It starts great cold but dies faster. Starts harder hot but idles longer. This is what I did so far:

NEW egr valve, egr modulator, idle air control valve, exhaust manifold gasket, throttle body gasket, cap, rotor, plugs, wires, injectors, fuel filter, o2 sensor, air filter, throttle body cleaned, replaced every vacuum line i could find in the engine bay (compared to diagram) turned idle screw either direction does almost nothing or makes it die. new starter, wires to starter, cable ends, battery, alternator, radiator, two oil changes to clean out gunk.
PLANNED:
check for intake leaks with little propane torch leaking out some gas. replace exhaust manifold due to crack on 4 bank.

ANYTHING else you guys can think of that cause this?

Black Painted Rims

xcon234 — Wed, 18 Nov 2009 07:42:41 GMT

So i always dreamed of upgrading my stock 14'' rims to some nice 15s, but never quite had the $. So instead i decided to paint my stock ones with flat black spray paint. I think they came out pretty well if i don't say so myself. What do you guys think?

MR2 pictures by xcon234 - Photobucket

Painted Rims

xcon234 — Tue, 17 Nov 2009 22:08:03 GMT

So i always dreamed of buying rims for my MR2, but i wanted 15's instead of the stock 14, so i would buy new rims and new tires and i just have that kind of money right now. So instead I decided to paint the rims. I think they came out pretty nice. Here what they would look like in flat black. I would like some of your opinions. :)

Can an in-line external fuel pump be used? Mk 1 1986

Mister Two 2 — Mon, 16 Nov 2009 16:09:32 GMT

My '86 Mk 1 needs a new fuel pump. Having had good advice on here, I removed the plastic panels from beneath the car and don't much like the look of removing the tank!

So, to avoid having to remove it, is it possible to fit an external in-line pump between the tank and filter, say like the Walbro 255 LPH type seen on e-bay item No. 160328288306 ?? It would be sooo much easier - but I don't know if it can suck fuel through the old seized pump still in the tank.

Or, alternatively, can a hole be cut in the floor under the console to enable the pump to be removed from the tank via the inside of the car?

All advice very much appreciated, thank you!

need airflow sensor for 88

wheels041 — Mon, 16 Nov 2009 03:32:11 GMT

im looking for a airflow sensor for my 88...im pretty sure thats the part i need anyone have one please let me know...thanks

Slotted/drilled brake rotors any good?

Pilot — Sat, 14 Nov 2009 13:47:32 GMT

You see these slotted/drilled brake rotor kits on Ebay, such as the ones found here. Anybody have any experience with these type of rotors? Snake-oil gimmick or...?

wanted: 1st gen mr2 rear visor

dmb_jlv — Wed, 11 Nov 2009 17:22:36 GMT

does anyone have or know where i can get the rear visor complete set. with the c-trim, all the clips, and the visor preferably with no cracks or damages??

Cold start injector - no power

Mister Two 2 — Tue, 10 Nov 2009 08:58:49 GMT

There is no power to the cold start injector on my '86 Mk 1 n/a. The Haynes manual tells you how to check, and then just says if no power check back through the wiring - any ideas how to do that please?! Many thanks.

Heater hose bypass

Dr.Who — Sun, 08 Nov 2009 18:19:28 GMT

I bypassed the heater lines of my '88 SC in an effort to reduce the number of posible air bubbles in the system while trying to cure an overheating problem that came suddenly. The A/C is non operating anyway and in Miami you don't need the heater problem is the car is still overheating. I have tried almost everything. Any other ideas, anybody??!!

Coolant steam

espguitarist33 — Sat, 07 Nov 2009 18:15:31 GMT

I finally fixed my coolant leak the other day. I tryed to bleed it, but I do not have the bleed hoses. i have always just put a cloth below the bleed nipple and let it go till it stopped squirting air. in trying to do this today, it squirted a little bit of hot water then all steam. I dont think anything came out with the radiator cap shut, and hten steamed with it open. Is this just because I dont have the hoses?

Mk2 Mr2 won't start.

MKhotbox — Fri, 06 Nov 2009 22:46:54 GMT

So here's ther deal, I have a video so I'll keep the text short.

I overheated my car after blowing some fuses causing my gauges not to work. It used to start but now the starter is blown, so now, nothing. There's pretty much two routes: 1. head gasket/mechanical 2. fuses/electrical well, three because it could be both.

mobil said it's an electrical problem, but they didn't do a full diagnostic, so they're kind of guessing. Let me know what you think. thanks!

p.s. if I can't fix it, I'm willing to trade for a good condition mk1. If you have something else you want to trade, let me know, I'm open. PM is best for me

if that works or,

YouTube - MR2 problem help overheated

low idle?

flyin_hawaiian — Fri, 06 Nov 2009 08:21:50 GMT

i have a 86 4a-ge with 114k miles on it and when i start it up in the morning it warms up fine (around 2100 rpm) but as the day progresses and as the engine heats up, the idle drops to below 1000 (today it was at its lowest at 600 RPM!)

This is a problem for me because i need to add a lot of gas before i can start releasing my clutch if i dont want my car to stall.

any help or suggestions is greatly appreciated.

'88 SC Engine Slows Down When Oil Cap Off

Benesesso — Thu, 05 Nov 2009 12:11:55 GMT

Thought I'd check to see if my high milage SC engine had much ring blowby, so while it was idling I removed the oil filler cap. No smoke, but the engine slowed way down--almost stalled.

Idle returned to normal after I screwed the cap back on. Why?

Lining up the timing marks.

skruyd — Thu, 05 Nov 2009 05:34:02 GMT

Lining it up with the crank pulley at TDC. Will the marks on the cam gears line up with the marks on the backing plate? Asking because my car is lopping and won't rev past 4500 RPMs. Currently the cam gears are 3 teeth after with the crank pulley at TDC. Just needing an answer without telling a story :D

E-Brake Warning Light Stuck On

IDon'tKnow — Wed, 04 Nov 2009 23:21:39 GMT

My Emergency Brake warning light under on the gauge cluster has been stuck on since I bought the car. I figured it was the switch so I pulled the one on my parts car and swapped it in but that didn't fix the issue.

I didn't have my multimeter on me so no other diagnosis was attempted; plus I don't really think I would have know what I was doing anyway.

Looking at the wiring diagrams is really just giving me a headache. When the plug is disconnected the light is still on.

Any ideas guys?