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| Engine starts and runs, surges then dies (Page 2/2) |
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Tony Santucci
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MAY 19, 04:55 PM
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Definitely pull the tank. Before you do, get a new fuel pump (ANYTHING BUT Precision brand), and a new strainer. YOu'll probably find the strainer is clogged with crap.
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Indyrestoproject
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MAY 20, 12:30 PM
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I hooked up a pressure gauge this morning with an inline shutoff valve and a return hose to the tank. I did get some flow through the hose for a few seconds but never got any pressure readings once I closed the valve. After a couple of tries I couldn't even get any flow. I removed the test line and reattached the fuel line to the filter. The engine started and ran for a few minutes but then it started surging again with the check engine light on. I'm going to invest in a code reader today. I can still use the test line to help drain the tank. Thanks for the tip. I'll post results as I go along.
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Patrick
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MAY 20, 12:51 PM
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| quote | Originally posted by Indyrestoproject:
I'm going to invest in a code reader today.
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It's your money to do with as you please, but this is the high-priced piece of hardware (with minor modification) that I use.
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Indyrestoproject
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MAY 20, 04:10 PM
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Okay, I'm game. That looks like a highly technical piece of equipment. How would I go about using it and what am I using it for? The guy at the auto parts store (O'Reilly) warned me off code readers too. So......I'm still going to pull the tank. Need to assemble fittings and hose for the inline pressure gauge. My father RIP was a NASA engineer and I have more shelves of fittings and tools than I'll ever use. Even so sometimes I never can find just the right one. Thx. [This message has been edited by Indyrestoproject (edited 05-20-2021).]
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Patrick
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MAY 20, 04:41 PM
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| quote | Originally posted by Indyrestoproject:
Okay, I'm game. That looks like a highly technical piece of equipment. How would I go about using it and what am I using it for?
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It's all explained at the link I gave you earlier.
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ag9123
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MAY 20, 07:30 PM
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If it IS the fuel pump, make sure to replace the short rubber hose between the fuel pick up and the pump with GASOLINE SUBMERSIBLE RATED fuel line!
The regular run-of-the-mill fuel line will deteriorate quickly and you'll be pulling the fuel tank again. ------------------
1984 Indy Fiero
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Indyrestoproject
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MAY 22, 06:05 AM
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I read the link about using a clip to read the codes so I'll try that today. His link also mentioned the rubber hose, so thanks for that. Depending on the condition I may go with a Carter or just get the GM EP386 kit with the hose. We used to use something called Armor Shield to coat the floors and walls of 3 million gallon gasoline storage tanks. There's another product for regular tanks. Undercoating should work for the outside.
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Indyrestoproject
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MAY 22, 03:03 PM
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Thanks to Patrick. The code is 44 lean exhaust. I started the engine, it ran fine for a couple minutes then started surging and the CE light cam on. Jumpered the A&B and after the 12 code I got the 44 code a few times before it went back to 12. Looks like there are about 6 or 7 things to check. I can cross off knocking. When I disconnect the vacuum line to the MAP sensor the surging goes away. Not sure if I should disconnect the wire plug too. Will check for resistance on the 02 sensor. It looks like the sensor is on the passenger side down on the exhaust header. I already checked vacuum and it's normal at -22 psi. I use HEET so water isn't a likely culprit. I'm going to invest in an inline fuel pressure gauge just to see what is going on there. So I'm on the right path. O2 sensor is cheap, MAP not so much. THX [This message has been edited by Indyrestoproject (edited 05-22-2021).]
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Indyrestoproject
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OCT 18, 03:39 PM
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Indyrestoproject is running again. Can't stress enough I learned never buy anything less than Delco. I found a company in New York to rebuild the stereo and as long as it's up I'm thinking about replacing the seized up a/c pump. I'm on my third temp sending unit. Sometimes it works...and I need a fan switch but if I remember all I could find last time was a non-a/c switch. Thanks and a beer for the house. [This message has been edited by Indyrestoproject (edited 10-18-2021).]
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