Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Admin)

Sun, 23 Nov 2014 19:26:54 GMT

Welcome to the old car owners club! When cars get to this age, EVERYTHING needs replacing.

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Mrskylighter)

Mon, 29 Sep 2014 23:05:12 GMT

http://www.mr2oc.com/showthread.php?t=268743&highlight=Rebuild+joint

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Guest)

Mon, 29 Sep 2014 20:13:19 GMT

I will post all my learnings once I have the car on the road as there have been many ....

New issues with the inner cv joint jamming up. The inner cv joint on the drivers side has poped the bearings out once and after putting back together then started making the clunking noise and I stopped before it gets worse. I cant find if there is a particular way to put the CV joint back together, being in Mildura there is no specialised help unless its for a truck or tractor.

Any suggestions to fix is always is greatly appreciated.

Once I have the car on the road, from VIC to QLD and seen by a professional, I will post all the joys of fixing the car.

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Guest)

Wed, 24 Sep 2014 20:34:58 GMT

Hi All,

So UPDATE.... after buying a 1993 MR2 Turbo unseen, replacing countless parts (still needing more), replacing bolts galore (missing and destroyed) this is what I have learnt....

1. No boost - after high pressure washing on a hoist. The problem came from the wastegate and actuator, there is a rod that had lost its connection.

2. Power steering is unsolved, finding out there is a speed sensor that communicated to the power steering ECU and a torque steering column sensor. This is still a mystery.

3. Height of MR2 was found on a website www.carinf.com Listing details of the MR2 including stock height with the lowest point of the car at 130mm high and the vehicle height of 1240mm.

4. M80 Car alarm needs to be finished tomorrow. Immobilizer circuit 1 has 2 sets of dual wires. Closer look at the instruction manual explains it further, however planning to get a Car Alarm installer to finish the wiring.

Thank you to all the help with info and parts.

More to do to make the car back to good condition.... next is avcr, turbo smart boost fcd (get it running at its best)... future months to then re-trimming the interior, respray the paint...

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Mrskylighter)

Wed, 24 Sep 2014 20:05:18 GMT

Glad you got some more issues sorted.
You should update this thread with what you did to solve the idle and boost issues. It might help current and future owners solve similar issues.

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Guest)

Wed, 24 Sep 2014 19:31:50 GMT

All sorted except on what to check for the power steering pump continously running, there is fluid and power, however continuously runs. Tried unplugging and cleaning the ECU contacts. Does anyone know about power steering? sensors for speed or turning the wheel or anything....

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Mrskylighter)

Fri, 19 Sep 2014 22:34:11 GMT

Vac of 20 seems pretty normal. Some people see 21 or 22 as well.

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Mrskylighter)

Fri, 19 Sep 2014 22:32:54 GMT

The throttle stop screw (small hex head threaded rod) might also have been over adjusted keeping the throttle butterfly open more then it should be.
Probably a good idea to follow the bgb to set the TPS, stop screw and idle screw to factory calibrated positions and see where that leaves you.

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (dasic1)

Fri, 19 Sep 2014 21:23:14 GMT

It will run for a bit when you turn the car on but then will stop if its just sitting there.
20 seams ok
If it was the TPS (throttle position sensor) you turned it will need to be reset.
Is the 1100 rpm when its cold or warm? The accelerate cable cable could also be to tight and holding the throttle open.

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Guest)

Fri, 19 Sep 2014 19:58:23 GMT

Hi,

Update questions as this is my first MR2 Turbo with power steering. Is the power steering meant to make a noise all the time or does is it meant to make noise only when you turn the steering wheel?

Update question - what is VAC on the boost gauge meant to sit at when idling. The gauge says it goes to 30 however the needle only goes to 20. Is this a problem?

Idle is up at 1100 rpm, and have twisted the screw ontop of the throttle body and turned the sensors on the side of the throttle body area, however cant get the idle / rpm less than 1100. Anything else to check (not too fussed on this one)...

Any ideas is greatly aprreciated - its almost on the road :)

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (nick12)

Thu, 18 Sep 2014 20:27:46 GMT

Usually done on the wire coming from the ignition barrel that livens up the ignition (& red lights) on the dash. You cut the wire and interpose the M80, so the engine still runs after the key is removed. Personally I'd wait until other problems are sorted. Just let the car idle for a bit, if you think the turbo is going to be that hot.

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Guest)

Thu, 18 Sep 2014 19:38:05 GMT

Trying to get the turbo timer feature to work. It talks of connecting a wire to 12V (simple), then another wire to the ignition sense wire - what is that wire.....

Apparently when turning the key out it will time for a programmed time before turning off. Trying to wire for this feature.

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (nick12)

Thu, 18 Sep 2014 19:22:38 GMT

Alarms are typically black wired with tags, removed by the installer, to increase security and annoy anyone who has to work on it later. The circuit board ...may... have indicators.

M80 has 3 relays and immobilises whichever circuits the relays are connected to. Ignition is 1, controlling the turbo timer.
2 & 3 (if used) are usually starter, fuel pump or some other electric circuit.

Depending on installation, other inputs could be voltage drop and Normally Open (N/O) or Closed (N/C) switches and outputs to horn, siren, dome light, indicators, door locks and boot release.

What are you trying to get it to do?

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (Guest)

Thu, 18 Sep 2014 18:37:48 GMT

1. Has been solved / improved. There is an actuator - round device that is connected to a pipe next to the turbo and has a long rod on the back. That rod was not connected to the wastegate (the circlip came off). Reconnected and is better. I was told that the rod is meant to move however is not moving. The blow off valve is still not working. Occasionally I can get 5 psi Boost. So I think this maybe solved enough to drive it from Mildura to QLD and a decent mechanic to test properly.

2 and 4 remain for solving another day.... any suggestions greatly appreciated....

Re: Latest issues on newly purchased MR2 Turbo 1993 - no boost, power steering, more, more (just_ace)

Wed, 17 Sep 2014 22:06:36 GMT

no boost may imply the timing belt has been installed wrong.