![](../thums/th_PTC-real-photo1.jpg) A/T option car has a TBI heater called "PTC " |
![](../thums/th_gaps4.jpg) water drain hole to protect studs from rust, those small holes need to be blocked when installed by gasket, choices. |
![](../thums/th_P3.jpg) new gasket, 91 M/T HOME GROWN and nice ! if you block the path that is slot curve here, this will kill ported vacuum. dead. |
![](../thums/th_pic1.jpg) valve is 100% closed, DP retracted, this gasket love loves to crack , and suck in and cause HAVOC. |
![](../thums/th_TPS2.jpg) The TPS has index slots, the TPS must never jam the TV open. it needs to be indexed correclty then calibrated, this has 2 parts, the throttle angles and an idle is closed switch, if the switch is not calibrated, bad things happen. |
![](../thums/th_16v-MPI-Body1w.jpg) 16v MPI start here. note the IAC port (suction) that i can block with clay and see if the IAC is stuck open. (racing idle, hot) , easy to do and hard factual answers, fast.... |
![](../thums/th_TB-bad-back.jpg) The TV is 99.9% closed, ~0.0005 gap, the arrow shows the ISC suck port and must not suck air , above 150F. cleaning that of off is obvious I hope. |
![](../thums/th_ugly$good.jpg) 1995.5 and newer mono port EGR injector port 100% clogged the early 16v engines do not have this mono port they run the quad port EGR in the intake runners and are beach to clean. |
![](../thums/th_Tb-95-gap.jpg) 16v throttle stop, factory setting, All 16v engines G16B , this is only a crude benchmark, i use a 0.0005 1/2 a thou, feeler guage to the the bore/TV valve gap. this is the MPI 16valve engines, 92 and up. there is no SUZ spec here, this is my reverse engineered data, (from Suzuki vacuum) |
![](../thums/th_critical-path.jpg) 95 16v MPI induction path, No leaks allowed. Before or after TB ! |
![](../thums/th_16v_IAC_w1.jpg) 16v IAC thermal wax powered cold air , closes above 150F, see the IAC cut up in frame 11 above. all IAC work same ,but look driffernt, dont be fooled they are the same. thermal valve. |
![](../thums/th_16V-Tbody1w.jpg) Idle speed 92+ |
![](../thums/th_mpi-idle-cap.jpg) G16B MPI TB , idlle bleed, idle duty cycle setting hot. RTM read the factory manual for setting this hot. |
![](../thums/th_95-TB-16V-iac.jpg) G16B 16v MPI throttle body, whole. |
![](../thums/th_TB-95-A.jpg) 16v TB |
![](../thums/th_tracker16v-TB.jpg)
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![](../thums/th_iac-wave1w.jpg) This is the 200 hz modulation of the ISC. 50% is perfect. 5mS period, 2.5mS pulse (hot engine,) if wrong use the bleed screw to set it correctly. The ECU controls RPM , only you can set duty cycle and not have air leaks making the ISC go NUTS. |
![](../thums/th_throttlebodygasketkit8v.jpg) this is the kit sold in stores, use the correct gaskets for A/T or M/T and year . Some holes are pass through, others X5 small, are purposely blocked. the Mid body gasket loves to crack and suck in and wreck the bleed screw air supply controls. |