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Corvette
C4 Forum
The dreaded l98 no start, well sorta.......
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<blockquote data-quote="86C4" data-source="post: 207274" data-attributes="member: 2095"><p>Ok, so it starts when its cold, let it warm up and cycle through a couple, three fan on/off cylces. Then she will just quit. The attached picture shows the the temp when it shut down. On the attempt to fire up (without stepping on the accelerator) it will want to go (meaning fire), rpms go up a bit and then she dies. (I am pretty sure I could coax it to stay started by feathering the accelerator)</p><p>No present codes.</p><p>When running fuel pressure is 38lbs.</p><p>Fuel tank is 3/4 full.</p><p>All injectors ohm out around 14.7 cold and 17.8 hot (replaced last summer)</p><p>Did FPR test pulled vac hose off went to 45 ish then back to 38ish when reapplied.</p><p>Pulled out the IAC cleaned and put back.</p><p>Rewired the TPS connector ( because I hurt it doing a back probe last year and I recived a tps voltage to high code and realized the top male probe wasnt seating in the TPS, since rerwire no code).</p><p>Hei Coil and ignition module changed out about 3500 km ago, plugs last summer.</p><p></p><p>So this is what I have possibly narrowed it down to possibly,</p><p>MAF</p><p>Bad coolant temp sensor</p><p>Some type of heat soak issue in the ignition parts.</p><p></p><p>But like alot of people right now I dont have the cash to just through a bunch of parts at it and hope it works....lol</p><p></p><p>So the family is tired of me swearing and trying to figure this out without asking for help.......</p><p></p><p>Can you help a guy out????</p><p></p><p>Thanks.</p></blockquote><p></p>
[QUOTE="86C4, post: 207274, member: 2095"] Ok, so it starts when its cold, let it warm up and cycle through a couple, three fan on/off cylces. Then she will just quit. The attached picture shows the the temp when it shut down. On the attempt to fire up (without stepping on the accelerator) it will want to go (meaning fire), rpms go up a bit and then she dies. (I am pretty sure I could coax it to stay started by feathering the accelerator) No present codes. When running fuel pressure is 38lbs. Fuel tank is 3/4 full. All injectors ohm out around 14.7 cold and 17.8 hot (replaced last summer) Did FPR test pulled vac hose off went to 45 ish then back to 38ish when reapplied. Pulled out the IAC cleaned and put back. Rewired the TPS connector ( because I hurt it doing a back probe last year and I recived a tps voltage to high code and realized the top male probe wasnt seating in the TPS, since rerwire no code). Hei Coil and ignition module changed out about 3500 km ago, plugs last summer. So this is what I have possibly narrowed it down to possibly, MAF Bad coolant temp sensor Some type of heat soak issue in the ignition parts. But like alot of people right now I dont have the cash to just through a bunch of parts at it and hope it works....lol So the family is tired of me swearing and trying to figure this out without asking for help....... Can you help a guy out???? Thanks. [/QUOTE]
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Corvette
C4 Forum
The dreaded l98 no start, well sorta.......
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