im in the last stages of getting the car ready to run but the motor gives me problems its a '89 350 tpi its in a '86 t/a the car will start up fine and idle good for a bit then just dies i try to give it throttle and wants to die and wont rev up higher than like 2k i still have to set it to factory timing i think it can be either a tps, maf, injectors but not shure

i have a DMM and checked the injectors
i measured the ohms at the injectors and this is what i got
left bank from front to back in order:
#1. 16.4
#2. 11.9
#3. 16.6
#4. 12.0
right bank from front to back in order:
#5. 12.2
#6. 15.5
#7. 13.8
#8. 14.2

 

Given those # a set of new injectors would be in order as a starting point
Should all test the same about 16
Was test done with injectors hot?

 

it was done cold i didnt start the car unless i should have started the car a bit and then DMM them

 

Can often change for the worst ( go lower ) when hot

 

ok i went to the junk yard and found all 8 injectors and they all ohm'd at 16.6-16.3 they were off the same model engine 5.7 350 '89 so i know they are the same ones my uses

 

Yep, they are the same.

Just make sure they aren't leaking/dripping fuel. My injectors all ohm-ed out ok, ~16, but 4 of 8 injectors were dripping fuel into the intake. Just goes to show you; you have to check everything.

Hope this helps.

 

Hope you didn't pay anything for them....

 

multi-techs

 

i didnt know that thnaks for the heads up

 

i actually borrowed them wink wink

 

i replaced the injectors now there is not even a start up it just cranks

 

Well, glad you got them for nothing...they are probably stuck shut.

Check out this "facetube" video: http://www.youtube.com/watch?v=VFJlTfHyrUk

You may want to try that option, at least it will guarantee they are open and flowing. Your best bet (IMHO) is to pony-up the money for a new/refurb set of injectors. ~$150 and you can rule out injectors as your problem. May I recommend the Bosch-III design.

Hope this helps.

Good luck.

 

thats a great video i will try it ...i think i might have found the problem i left the disty a lil loose so i can move the timing where it will idle stable so i got to loose i will go ahead and set it to specs and see if that cures the problem

 

ok i tighten down the disty and it starts but i have to keep giving it throttle to keep it on or else it just dies after keping it on for a min or so i ohm'd the injectors again and the all were 16.2 i also checked the fuel rail to see if there was gas and i pocked the nozzle on the left rail and gas skirted out so there is gas what else could the problem be there is also some back firing noise coming from the engine

 

Sounds like the "acquired" injs are in need of a good cleaning to unstick them.
How long were they sitting in the yard ???

 

the car was new to the yard and when i compared the junkyard injectors to the ones on my engine the ones from the yard were cleaner so i suspected the owner of the junkyard t/a used good fuel or fuel injector cleaner my theory is that either the maf , tps ,iac is bad or fuel regulator not shure

 

i did a stephascope test with a screw driver and the injectors are not clicking

 

.. Next is check fuel pressure with a pressure gauge... should be mid 40's lbs...

.. Check for ECM codes... write them down... then clear them, the loose distributor may have caused the codes... I assume the idle ignition timing is now set correctly...

.. Check for any cracks in air intake hose... all intake air must pass through the MAF sensor... air leaking in behind the MAF sensor will cause the ECM to shut the engine down...

.. I wouldn't throw the old injectors away, they're prolly still usable...

 

i dont have a fuel gauge ..everything is tight made shure there are no new air leaks or vacuum leaks ...im prety shure the injectors i got in the junkyard are better than the ones my car came with i just switched them out to see if it would at least run but it didnt

 

.. Guess you need to pick up a gauge... see if a local auto parts store will lend you one for free with a deposit...

.. If you have fuel, spark, sparkplug wires on correctly, distributor in correct phase, and correct ignition timing, it has to start... unless flooded...

 

My fuel pump failed and the pressure was too low to rev up the engine, sounds like your situation. A fuel pressure gauge is incredibly important in a situation like this, get one or get access to one... Could also be a clogged fuel filter.

Good luck...

 

thats what is wierd to me because the first time i set it to 0 on #1 spark plug it would start but then die out i had ohm'd the injectors i was told some were bad so i replaced them with some good junkyard ones and after that it would not even start at all it would just crank so i put back the injectors it came with and still no start just crank i did everything right but i will check the autozone to see if i can get it loaned

 

the car has sat for a year and i rarely used it due to no license at the time and before i thought there was a fuel pump problem but it was just a blown fuse the pump is great as is the fuel filter it was not so long that i had replaced it so i know those to things are still good but i will check the fuel pressure that way i can be sure

 

i dont think i will be getting to use that fuel gauge loaner tool $150 deposit i only got $5 on me and no job

 

This is very similar in price and quality to my fuel pressure gauge that I have had for 7 years...check it out (certainly isn't $150).

http://www.google.com/products/catal...d=0CJ0BEPMCMAI

Good luck...

 

.. $27 online... or free use with deposit... both great deals... guess that's where we are...

.. Car has sat so long, should also consider siphoning the gas out and putting fresh gas in... the old gas can be saved and added back in a little at a time to fresh gas, once you get it running right...

.. In the meantime, looks like you need to come up with a job, as well...

 

I think I'll tell my dad if he will buy it for me...hell yeah I need a job but nobody hires people with out a high school diploma or a bad background check

 

Ok after some research on the tech boards there is a lot of signs that point to the ignition control module some of you already suggested that so my dad got one for me and gona go and change it and see what happens and I'll keep you guys posted on the results

 

ok i changed the msd ignition control module with a factory one...i took the spark plug out and while still in the spark plug wire was touching to ground and there is a red spark i know it should be blue now what