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Old 05-19-2012, 08:32 PM
tom42nm tom42nm is offline
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Join Date: Jan 2012
Location: Southwest New Mexico
Posts: 14
Quote:
Originally Posted by just-n-time View Post
first you have a bad ICV, when you pull the electrical connector the idle should go to to 1900, if not replace it. Second if you hold the air horn plate down just slightly and it runs better! what you did was increase the fuel, so this means that you need a three millimeter alen wrench and turn it c/w to fatten up the fuel. do a search on X11 and setting the air fuel mixture. Replacing the rubber parts is always a great place to start on one of these cars, they get hot under the hood and all the rubber connection parts need changing after 20 years of service, it is cheap but labor intensive, oh yes do not for get that every moving part connected to the heater/AC system is operated by a vacuum module with a rubber diaphragm, they to get worn out. The fuel pumps should turn on with the key and run for about 3 or so seconds this is prime mode, though the fuel accumulator dose not hold max pressure it dose hold some pressure, even over night. Hard start could well be that all the reserve pressure has dropped off and that prime mode just is not long enough to do what we are asking it to do, there fore a long cranking period. When you have lost prime and the first shot is not enough the pumps do not turn on till the crank shaft position sensor reads RPM and thus energizes the pumps again, this is the run mode. I hope I have given you some help. congrats on your newbe status I hope you have a great experience. JNT
Great idea! Plugged climate control line at manifold and got better rpm immediately! Having trouble with that ac anyway- we have mice and packrats and they can eat up wire and tubing.
Also plugged egr line and brake booster line- no change on those.
Where else can I lookfor vacuum leak?

This 91 300te just turned 325K and the adjustment tower has never been touched.
Thought I would rule out everything else first
Temp sensor
ovp
eha
o2 sensor
plugs, wires, dist,rotor
all test good or replaced.
The iac test fine with current, voltage, resistance.
Am going to make a manual with pipe hose and a ball valve to see what happens.
Thank you for the AV/heater direction!
Tom
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