czny Posted June 7, 2014 Share Posted June 7, 2014 (edited) Yesterday I had posted in the 'What have you done today thread.' All I had done was to replace the upper body complete with injector, throttle return spring & FPR without removing the lower throttle body from the intake manifold. Didn't have to disturb the coolant gasket nor the TPS this way. Problem was throttle response was feeling like the car was bogging similar to a too rich jetted carb. And the telltale smell of fuel out the tale pipe when engine was cold! Not good for the cat converter. Fuel injector was supposedly a 'rebuilt' unit in the SPFI body I had bought from a seller. The Air Control was new, but a used TPS & "rebuilt" injector. Had bought another throttle body complete on a PNP 50% off day almost year ago. Why not try it? Easy experiment. Timing set at 20*, TPS adjusted correctly, good plugs & wires, distributor checked out OK, fuel pressure OK. Etc. Here's some info from the 87 FSM for anyone who needs it. Edited June 7, 2014 by czny Quote Link to comment Share on other sites More sharing options...
SmashedGlass Posted June 7, 2014 Share Posted June 7, 2014 Thanks for posting. And damn, I need to get my hands on a set of '88 FSM's. Hate not having a set, usually the first thing I buy after picking up a new/old car. Quote Link to comment Share on other sites More sharing options...
l75eya Posted June 8, 2014 Share Posted June 8, 2014 Czny, thank you for taking the time to post this information. Those scans are great! Going to have to read through when I have some time and see what I can make of it all. Tps and iacv are my two suspicions. Have to see what I can find out about the tps adjustment you mentioned. This is great stuff. Thanks again! Quote Link to comment Share on other sites More sharing options...
czny Posted June 8, 2014 Author Share Posted June 8, 2014 (edited) Czny, thank you for taking the time to post this information. Those scans are great! Going to have to read through when I have some time and see what I can make of it all. Tps and iacv are my two suspicions. Have to see what I can find out about the tps adjustment you mentioned. This is great stuff. Thanks again! You're welcome. Pays to go thru the procedures just to certain that there are no nagging doubts if nothing else. Edit: Looks like I chopped the 'h' in 'sluggish'. Edited June 8, 2014 by czny Quote Link to comment Share on other sites More sharing options...
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