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i have run a aem in my 90 for years and tuned well. i rebuilt my engine, wired in 2 5 volt sensors, and reinstalled aem. I put my cal file back in and the car crancked. it ran for about 3 to 4 minutes and died. the ecu was dead and disconnected. The engine wont crank again for 15 minutes...

i know we use the round plug knock sensor and mk4s use the square plug ks but are there any other differenes between the two? can we use mk4 ks on our cars and just switch to the square plugs? i can see on my mk3 round plug sensors it has a 76 on each one. the small numbers are different...

at a drag launch my junkyard 3.90 diff got ate up. we put new clutches in it but the preload was gone. it had a little play. I had too much rpm and dumped the clutch. the 522rwhp ate about 3 to 4 inches of teeth off the ring as seen in the bottom of the diff. fortunately Suprarich had...

i have a hks standard waste gate and am having boost creep. It also wont boost spring pressure of 14 psi it wants to go higher to 16 and creeps in higher gears. i have a ebay manifold and it along with the wg was working fine at 14 psi on a friends car. the vavle opens less than a 1/2 inch...

i bought this jdm 7M engine and noticed some large plugs on the drivers side of the engine. What are they for? Is this some plugs for holes to remove the sand from casting? They are above the freeze plugs and are threaded and have a large hex wrench hole for removal/insertion. I dont have...

where does a FP sensor need to be installed to get stable and accurate readings. I am using a AEM ecu and currently have the pressure sensor installed just after the stock junction under the intake manifold. From here the fuel line continues to the rail. then the fuel line comes out of the...

I have an aem in my 1990 T Surpa and the a/c idle up has never worked properly. when the a/c comes on the ISC valve is supposed to open up more to idle up the engine to provide power to the compressor without the engine dying. The valve opens by the % you choose in the a/c load comp % in...

i have bought the Super Pro bushings for the front. the upper bushings are easy to install but i have gotten confusing info on the install of the lower a arm bushings. the instructions dont mention anything about reusing the outer sleeve of the oem bushing. it appears to press out the old...

After a 5 month wait clear front corners were finally manufactured. They came in today and are being installed. I have some smoked covers for the front also but i was waiting to get some clears to go underneath which i think will look better than the orange bleading thru. in need to get some...

Are the front and rear upper A arm suspension bushings different sizes?

what is the correct pressure for R134a freon. My car is converted to R134a and i think it runs at a higher pressure than the oem manual states. It states on the low side (the side i can measure) is to be 21 to 28 psi which i think is for R12. Shouldn't the R134a pressure be higher?

here is what i will be installing this weekend. It took Sound Performance a long time to get it here but i will finally have a decent turbo on my car. I just got my engine back together last august and my aem tuned for stock ct and 440. The sp61gt has the sp dp and turbine housing. Not the...

after i installed my SS brake lines and bled the system my car pulls to the left then i can feel the ABS engage and it somewhat brakes straight. I bled the brakes from rear passenger to rear driver to driver front to pass front. The car kind of shimmys when the brakes are initially applied and...

I have a 90 with abs and i need to replace a broken hub bolt. I have looked at the trsm and want to know if i have to disasemble the axle hub from the axle bearing to get the bolt to clear the abs sensor rotor. I know without abs it is much easier to punch out the stud and replace. Do i...

I removed my intake and noticed a good bit of oil in the 3rd runner and coating of oil in the others. I just had this engine rebuilt and the head too. The engine runs good. The car does smoke some at idle but not under throttle. The IC pipe from the IC to the throttle body doesnt look like...

i have a leak from inside the cps sensor. The oil is coming out from underneath the gear from around the drive shaft that goes thru the housing and has the gear on the end of it. The oil is not coming out from around the housing that the O ring seals off. The oil can be seen dripping down...

I finished my rebuild 3 months ago after taking over 2 years to get it done. After putting 2000 miles on it i went to the dyno. We havent had a dyno in town for many years. I only boosted 11 psi on my stock CT26. The turbo has 217,000 miles on it with no rebuilds. I will get a 57 trim...

I have searched and checked to try to diagnose this problem. I have a 90T which is throwing a code 21. On the 89+ ecus if the o2 heater does not work it will throw a code 21 as well so if the sensor itself is bad. I bought the MDC o2 sensor and spliced it into the original oem o2 sensor...

My supra has been down for almost 3 years now. That is a long time to not be boosting. I have acquired parts over the years and will have a strong engine but still the stock 220,000 mile ct26. I will have to upgrade after the break in. I have painted some parts and hope the high temp paint...

I have some 92 wheels from a junk yard but the center caps are tan and not the aluminum color of the wheel. What kind of paint and what color matches the stock 92 5 point wheel?