tvs installed do i need fule pump
08-20-2011, 07:05 AM
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tvs installed do i need fule pump
we installed the tvs on my 08 hhr 2.2 i'm using a 2.6 pulley. do any one know which fule pump will work on my car ? and do i need a fule pressure system as well ? and which step 2 cool plugs will work in my car?
08-20-2011, 11:23 AM
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ok my car is being tune with hpt now. the tuner said i need a fule pump and zoom said i did also . but what is crazy is my car has no power in reverse but is fine in driver. i think its my tb, when i put the car in reverse the car idle bad, when i put it back in driver it idle ok .
08-20-2011, 12:31 PM
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fuel pump is nice but not needed IMO, if you have a wideband and interceptor you should be able to know when you need a new pump. If you were trying to go e85 I would understand the new pump. You probably have 60# injectors right?
08-20-2011, 02:26 PM
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i'm running 60's# i also have 8.9.1 wiseco piston thats why i using a smaller pulley. i have a wideband at wot it run around 11.5 the longer i say wot then it run to 15.6 that way my tuner say i need a fule pump. also i have no power in reverse and there codes was fine till i start tuning for the tvs. i feel like its the tb .
08-20-2011, 02:31 PM
#7
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It could be the TB, but 60#'s aint gonna cut it. I would get 80's bud. Our fuel pumps are pretty damn good for stock. I'd start with the injectors first and then move on to the pump.
Try turning your AC on full blast and see if that keeps the car running in reverse
Try turning your AC on full blast and see if that keeps the car running in reverse
08-20-2011, 02:35 PM
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the car don't cut off it just don't have power when i back up. and when i put it park it idle bad ,then when go back to drive and back to park it start idle fine
08-20-2011, 02:40 PM
#9
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You may have broken something in the tranny then... Have you gotten any CELs for it yet? Same thing happened to me, except I had no 1st , 2nd , or reverse... lol
08-20-2011, 05:24 PM
#17
i think some may have skimmed the first post. yes the cobalts with the lsj have a good fuel pump, however the car in question is an HHR with a 2.2l. my guess is the fuel pump is weak, and i wouldnt consider a build like this without an upgrade.
get a bigger fuel pump.
get a bigger fuel pump.
08-20-2011, 05:36 PM
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i'm learning alot thx for the info. so do i need 80's ? and do i need a fuel pressure system to or start with pump ? the car is pushing about 24psi at 6800k rpm and its a auto
08-21-2011, 08:03 PM
#24
Lol im the tuner. . Yes u need a pump because the stock pump dont flow enought. Ure issue with the reverse issue is i think the t.b or that flash gm did because it started doing it after we got it back from them. His idc is 60% at 7krpm. Hes a auto also low compression and his boost was up to 23-24lbs.. Hss hes running meth also i know hes running outta fuel since ive looked a his wideband going leaner then comanded with everything being on 100% his issue with the idle is somthing to do what i said before bout gm cuz it only does it in reverse or park. In d or anything else its fine. If u leave it in park and dont fiddle with it. Idles great. Once u move the shifter to reverse or somthing else then back to park itll lope like its still in gear. Rpm will drop even tho ive changes his air cylinder mass so it would be correct. Ltft are 100% on whwn i left. Plugs need to be changed cuz hes running meth and is on a tvs 2.6. .. ......