R33A31

After open the ecu cover, I found there is no LED at all.

exh. temp. light ON due to I'm not use exh. temp sensor. My exhaust pipe re straight pipi 3" from front to rear muffler.

Hi can somebody tell me how to dignostic the r33 s2 ecu. After turn on the ig. on there is no led on my ecu

Hi All, just finish my thermo fan installation. I'm using BMW e34 fan (17") . Install direct to the oe plastic shroud with rivet & aluminium bracket. The signal from relay connect to the temp. switch that locate at the bottom of the radiator. If connect from tem. switch that locate at the intake manifold ( beside the thermal transmitter) the check light will bo ON. Once the themp raise to the working temp. the fan will be ON aorund 5 sec only..... Is it my connection right ? Advise please

is it 40psi at idle with vacum hose in or out ?

so when you have 1 to the ignition switch you mean it will come on as soon as you start the car???? if thats the case then i wouldnt do it. The car needs to reach a certain temperature before it runs safest. having a fan run as soon as it starts (on a cold start) would slow this process down. i reckon just have them both to the thermo switch would be best. I agree with u rice_me_up. Engine must run with certain temp. so, wich one more efficient 2x14" or 1x16" ?

I plan tu use 2x12" to my rb25det. 1 direct to ignition switch & another 1 to thermo switch with individual relay...any comments on this method?

Hi All, I just jack up my r33 axle and found the left & right coupling that joint to the drive shaft with abit loose (can shake with hand). This problem cause the knocking & jerking sound. Can we change the bearing or readjust the clearance or change to new axle.If can rebuilt can some let me know the instructions to rebuilt this. Thanks in advance

I went to the autopart shop for 040 580 254 984 pump but they cant find base on this no. They want the info car & model that using this pump.

Hi All, LT12s just install & on-road tunned. Everything stock, except LT12. Mid & High rpm performance increase around 30% to 40%. But I'm not able to activate the IAAC valve. If IAAC valve connected to LT12, the idle will jump to 1300rpm. How to wire up this valve to my LT12. Help please

Hi All, My A31 dash wiring are as : Full R33 wiring include speedometer, aircond controller. But using R32 dash, aircond blower, fan & etc. All the R33 aircond switch & sensor are transfer to R32 system. The problem my air compressor keep-on compress (always loading) even I adjust the temp. at higher celcius. Now I'm using the external manual thermostart to cut-off the compressor but the blower speed still using the aircond controller. Any advise please

I'm plan to install the 4wd to my '89 A31 & will be RB26dett BUT dont know which rear assy to choose & other part. Recently I'm using RB25det S2 . My idea if mod this RB25det engine with rwd, I will facing the traction problem. Any idea & advise please

For Gearbox crossmember : From R32 re totally different with A31 but R33 re same with A31. In my case, I'm using R33 meter so the electronic spedo can be use

For front tail shaft from A31 to be shorten & change the yoke to R33 due spline shaft re bigger than A31. The Rear tail shaft exacly from A31 but the rear coupling change A31.

I'm manage to d/load the injector o/put digram but confuse with the ign. digram due to my engine inj. driver ( RB25det S2).