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:withstupi But I don't hate my Eibach springs ;)

There's actually 3 nylon washers on the throttle cable bracket...2 on either side of the spring on the center stud and one between the bottom metal arm and the main bracket. These get old and disintegrate causing the bracket actuating arms to be very sloppy. Also, the holes in the center metal...

Code 51 is sure as heck part of the problem. The IDL contact in the TPS must be closed to set base timing...the ISC system is inactive with IDL open. This results in a very inconsistent idle...you set timing with the engine warm at normal idle of 650 rpm. If you set timing with it like this...

If you are getting clatter from the valves, check the shim clearances and install the proper thickness shims. The TRSM tells you how...the car needs to be dead cold when you do this.

Do that and you unload the head...you'll have to replace the HG if you do.

Yep. Re-torque if it's never been done and check valve clearances per the TRSM..it's a pain...just did it a few days ago. Can't help ya with ARP bolt ID...got studs here. You might want to check the torque on the cam caps and take a look at your plugs for correct gap.

If you are thinking about buying a torsen (Japanese version)...I'll warn you now, the side shafts inside the differential are different. Also, Jaws Gear has been experimenting with the OBX version with less than good results. I ended up replacing my LSD carrier with a TRD 2 way; clutch type.

Ok...I looked at your profile and see you have an '87. You may be in luck. The HAC sensor is a 3 prong sensor that plugs into PRE-'89 HARNESSES ONLY. All 89+ cars have the HAC sensor built into the ECU...that's where I got the trouble area for code 32 (I have a '89+ TRSM). For pre-'89 ECUs...

Did you happen to hook your battery up backwards...even for a few seconds when you put the new motor in?

The torson was only in Japan...here the LSD's are clutch type.

LOL...I'm sorry, but seeing that in my mind made me laugh :biglaugh: You have a short some where...check your connections from when you installed them to the switch/relay. Also look at flex points...the wires may have cracked.

Code 51 is likely the TPS...do a search here...it's been beat to death the past few weeks. Likely it's the TPS, but the ECU is also indicated as a trouble area. Code 32 is the AFM for the NA motor, open or short circuit in the HAC sensor signal for the turbo motor. Bad news for the...

You would need to go 50% toluene/xylene to get about 100 octane. Here's the math: (A x gas octane) + (B x 114 or 117) / (A + B) = Octane Value A = gallons of gas B = gallons of toluene 114 = octane value of toluene 117 = octane value of xylene Not too sure I'd want to go to the...

Make sure the straight edge is flat across the head intake ports...you should use a machinist straight edge. Slip a feeler guage in the gap to measure it. Looks like your bolts might have loosened up and the heat from the head warped the manifold. I sell chrome ceramic coated upper/lower...

I hate to say it, but IJ is probably right...a BHG :cry: The pressure test will tell you if the system has any leaks...might want to do the NAPA block test for exhaust gas in your coolant.

That's where the fitting I was talking about goes that feeds coolant to the ISC. Are you sure the head is warped? And not just the lower intake manifold?

Welcome...you at Kirkland? I know a guy by the name of Mike in ABQ that had a white '89 that looked an awful lot like yours...did ya happen to buy it from him?

Where do you get the tech info on how the ECU works JJ? I'm thinking a little light reading is in order :naughty:

That's what I thought, but wasn't 100% positive...thanks JJ Fuel cut is too abrupt to be a timing retard ;)

It's not meaningless...it's going to read at least 100-150 deg C low after the turbo. But, you are right if you want to get a valid comparison the probe placement (pre or post turbine) is necessary. Mine is on the bottom of the turbo housing just after the flange where it bolts up to the...