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-   -   91 acura flooding on start up (https://www.acuraforums.com/forum/general-tech-14/91-acura-flooding-n-start-up-2132/)

dlabout 02-16-2008 05:33 PM


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Hi all,


I'm at my wits end and am looking for a direction. I have my son's 91 Acura integra. We have rebuilt the engine from the ground up and had it running for about a month. Initially it had a irratic RPM at idle. We chased that down to the idle contol air valve. Now it has always been running rich, so to get it through emissions I have replaced the O2 sensor, distributor, fuel filter and plugs and wires. We made it through emissions but now it has developed a new problem. It is running SO rich now that it floods the engine after a second of cranking on start up. The car will start and run if pull started to about 3000 RPM but won't maintain an idle or start on its own. I trying to fix the issue I have replaced the Fuel regulator, ECU, Fuel relay, throttle position sensor. As I see it, the engine is getting plenty of fuel so it can't be the fuel pump. If I crimp off the fuel line with a set of pliers I can get the car to start for a second. SO what is left???? I'm at a loss. I have another fuel pump but find that hard to believe is the issue. I could change fuel injectors but I would expect one to go bad and not the whole set. ANY thoughts?? The money pit awaits another feeding and I have no clue.


Thanks,


-Doug
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WheelBrokerAng 02-17-2008 11:47 AM


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Check the Idle air control valve and also the Fuel pressure regulator...[img]smileys/smiley16.gif[/img]
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troys90gs 03-13-2008 04:54 AM


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ignition timing or replace fuel pump relay it under the dash on driver side
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