Question about 1998 Chevrolet S-10 Pickup

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Not starting! 98 s10 -2.2 4 cylinder. the truck cranks over gets spark checked the fuel pump, pressure is what its supposed to be. no bad codes according to code reader. get good gas pressure through the rail that leads to injectors.everything i've checked says it should start but doesn't. when you first try it after its set for a couple of hours it tries to start for half a second. if u spray starter fluid direct through the throttle body it pops and tries? I'm baffled any advice appreciated

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Check and see if the Injectors are firing. Disconnect one of the injectors and use a test light and paperclip. Put the paperclip in one of the disconnected injector connectors terminals, clip the testlight to the paperclip. Now touch the tip of the testlight to the other terminal in the same connector DON'T LET THE TWO TOUCH TOGOTHER AT ANY TIME!! Have someone crank the engine the light should blink if so good Now do it to the other three I have seen a bad computer that was only firing two injectors,
If its the computer you cannot just go and buy a used one and pop it in they are programmed to the vehicles VIN # you will go to the Chevy Dealer to have the program uploaded into the PCM in the truck
Please give me a fixya f you think this information is helpful Thanks Randy

Posted on Aug 19, 2008

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what does getting mean? which engine, 4Liter or 5.2 or what?
spark at all cylinders is getting and timed right?
runs on test fuel so sparks good, that means fuel is bad
or flooding or too little fuel.
code 12 cranking for 5 seconds, means sensors are ok.
why replace parts that make spark when sparks good, it run on test fuel, why worry spark.? and not just fueling.?

now lets do fuel, step one is fuel pressure, not squirt tests.or dribble test. a real tool called,a fuel pressure gauge that works, and nothing else, (unless rail is dry and now we know its not)

if all spark plug tips are dry, are they?
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the tests are all there,

http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

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1 Answer

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Check for spark on cyl 2. Auto parts stores sell a spark tester. th?id=hn.608054987065067225&pid=15.1&h=205&w=160
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You can remove one plug at a time, and place it back on plug wire, place it on top of engine block, have someone else turn motor over well you observe to see if there is spark.

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