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02-26-2017
I am in the process of changing out my stock fuel pump for the AEM E85 pump. It is the stock unit and the strainer look completely clogged. 169K miles on it. Would a really cheap new sending unit with the AEM pump hold up to the E85 or should I just blow out the old strainer with some brake cleaner and air and reuse the stock sending unit??
What would you do?
02-26-2017
id use the new sock that comes with the new pump. chances are the old one wont fit the new one.
dont change the sending unit unless the gas gauge dont work.
02-26-2017
There is the one that attached to the outside of the sending unit. Then the one that attaches to the new pump. The new pump comes with a new one but the sending unit one is cloggged. I cleaned the hell out of it and blew it out with compressed air so it looks better. I can't justify paying $200 plus for a new sending unit just to tear it apart to put the E85 pump in it.
02-26-2017
im pretty sure you dont know the actual names of parts in hand.
sending unit is the rod off the side of the canister with the float, that rod moves along a board and it talks to the gas gauge in the dash board. has 100% nothing to do with the delivery of fuel.
02-27-2017
I know what the sending unit is
02-27-2017
as i stated, you dont know the names of the parts.
theres only one sending unit, its the float and rod and little panel.
the whole thing is called a canister. if you have two sock filters, im sure they both wont fit the new pump, cause its larger.
even snowflake knows its a canister, http://www.grandprixforums.net/threa...stock-canister
02-27-2017
Sorry
02-27-2017
it just makes it hard to follow or help 100% when parts are called the wrong name. not trying to bash ya or nothing, your just confusing me
02-27-2017
I completely understand.
02-27-2017
Good luck trying to find just the replacement outside sock. I looked for weeks and gave up. I personally would not reuse the stock sock if it was clogged. You can cut out the bottom of the canister and have the AEM fuel sock at the bottom of the tank (fuel slosh may cause fuel starvation). Or you can mount it inside the canister and leave the bottom open (but then you lose fuel capacity).
02-27-2017
Unfortunately I ended up reusing the outside strainer and now when it's running the LTFT is high which may indicate it's not getting enough fuel. Urrrgh
I may just have to buy a new ac delco unit and use that for the E85 conversion. I have read that people use the stock pump with no issues. Any suggestions??
02-27-2017
it seems theres two types of pumps, non ventury, and ventury. it makes a difference if you use the wrong one.
are the ltft neg or pos? pos is lean, neg is rich
i know a guy here who was using the stock pump just fine on e85, it was not till he install a shot of NOS he started to run lean, hes since upgraded his pump.
02-27-2017
The LTFT are positive. It is at about 12%. It did not run anywhere near that before.
02-27-2017
did you switch to e85 yet? or still on 93 ?
02-27-2017
I'm on 93 still. I wanted to be sure the pump works properly before I put in the injectors. I also need to get a tune ready in HPT.
02-27-2017
that might lead to the wrong style pump then maybe.
02-27-2017
I bought the AEM E85 pump from ZZP. I'm just going to buy a new Ac Delco pump tomorrow. I'll switch over the injectors and research how to tune it while I am waiting for the pump to arrive.
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