04-30-2011 | #15 |
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: Knowledgeable Tech -Starting/Performance problem needing assistance
Nobody said anything as to what a check of the fuel pressure regulator had to say? I would have checked that after I did the pressure test, KOEO by the book. The FSM protocol insures that both pumps are okay. The pressure was a bit down so the filter was swapped. PSI still down, so pump assembly was checked & cracked hose was found. This isn't consistent with loading up, no? Would not the motor be lean & smell lean?
Not trying to be a wise guy, but if it's loading up & shutting down from too much fuel....just saying the regulator bears a look, right. If all of the above isn't the case then it's too lean, right? Nobody said anything about a lean smell from the exhaust. That is usually consistent with OEM injector failure as it's the coils that are the weak point on the 90's? The OE injectors rarely foul up bad enough to just dump fuel? I thought the design prevented that? Or do I have that wrong? Do we know for sure that the OEM injectors are still in the car? I can see my brand of injector thru the legs on the plenum. Just my fwiw. Maybe two separate failures are at work here? I have a hard time matching the described symptoms to what was found to be physically wrong....or I'm stuck on the loading ( too rich ) up & shutting off symptom which makes me want to check the regulator & then move on to other things. Please don't take me the wrong way! But something don't add up. Tom
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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no start, performance problem, runs rough |
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