Plates already owning me :(
#61
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Originally Posted by BLKWS.6
I unplugged the TPS with the car running...no code. 58 PSI is what the stock fuel pressure is set at on an LS1. It was taken after the regulator and thus this is correct The GM dealership said my pump was all gravy. I am not cutting holes in my car either.
#63
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I doubt a fuse would be the issue. They are either blown or they're not. None of that intermittent stuff, unless maybe there was a loose connection.
Relay would be more likely, for an intermittent condition. Frankly I've never replaced/pulled an injector fuse or relay, but if it's anywhere I'd assume that it's in one of the two fuse blocks under the hood on the driver's side where the FP relay is. At least that's where I'd look for it.....
Relay would be more likely, for an intermittent condition. Frankly I've never replaced/pulled an injector fuse or relay, but if it's anywhere I'd assume that it's in one of the two fuse blocks under the hood on the driver's side where the FP relay is. At least that's where I'd look for it.....
#65
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i would most likly say fuel filter mine did the same thing .drive fine until you got about 60-65 and if i woud nail it it would hit about 5k and just bog like you wasnt even flooring it .i did a fuel pressure test and changed the filter and it was good as new.i could be wrong but i think the fuel presure should be around 80 on the ls1 cars .i wouldnt swear to it thaugh
#66
Originally Posted by ls1chris
i would most likly say fuel filter mine did the same thing very similar .drive fine until about 60-65 and if i woud nail it it would hit about 5k and just bog like you wasnt even flooring it .i did a fuel pressure test and changed the filter and it was good as new.i could be wrong but i think the fuel presure should be arund 80 on the ls1 cars .i wouldnt swear to it thaugh
Mine goes to redline fine, then it dies cruising at 1500rpm. Or it wont start, or something else. This is not a starvation up-top issue at all.
PS. why is it shitted up after 5K miles!?
#67
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Originally Posted by BLKWS.6
So the fuel pump relay is a relay, NOT a fuse? sorry to be dense Ummm...I guess I will just have to replace it, no testing an intermittant issue. How much $$ 5? 10?
#68
Originally Posted by blue02formula
The relay next to it is for your air cond, just do a swap to see if that helps.
#69
I didnt read the whole thread so I dont know if someone already mentioned this, but have you taken a look at you MAF? Also do you have a K&N filter and have you cleaned it lately? Sometimes the oil will get on those little resistors on the MAF and can give you some headaches
#70
Just read more of the thread. There is a good possibility that it is you TPS. I had a 98 wrangler that the TPS started going out and it would surge and cut out similar to what you are experiencing
#71
Originally Posted by NoGamesLS1
I didnt read the whole thread so I dont know if someone already mentioned this, but have you taken a look at you MAF? Also do you have a K&N filter and have you cleaned it lately? Sometimes the oil will get on those little resistors on the MAF and can give you some headaches
Maf has not been cleaned, paper filter always used.
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Originally Posted by BLKWS.6
I know a guy with an LS1, but he is not very accomodating of a personality, how much is this part to purchase?
GM list price: $19.59
It is a relay, not a fuse. It is the same as the A/C relay, as listed above. You could just swap the two around in your fuse block as mentioned.
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Originally Posted by NoGamesLS1
Just read more of the thread. There is a good possibility that it is you TPS. I had a 98 wrangler that the TPS started going out and it would surge and cut out similar to what you are experiencing
#75
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Originally Posted by BLKWS.6
I know a guy with an LS1, but he is not very accomodating of a personality, how much is this part to purchase?
#76
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Originally Posted by BLKWS.6
PS. why is it shitted up after 5K miles!?
#77
Originally Posted by badhoopty
my god, have you changed the filter yet?
in the time it took me to read all 4 pages i coulda changed mine... that woulda been the first thing i checked.
in the time it took me to read all 4 pages i coulda changed mine... that woulda been the first thing i checked.
#79
Originally Posted by blue02formula
I've never seen them at a parts store, may have to go to the dealer. I am just suggesting to check to see if you need to buy one, by switching the fuel pump relay with the air cond relay (same part number and they're next to each other). You probably don't need the air cond this time of year, drive it with them switched for a day or two to see if the problem still exist if it goes away buy a new relay.
#80
On FI thirdgens there is an oil psi sensor if it reads near 0 psi will cut power to the pump so as to save the motor if the oil pump dies. I don't know if LS1's would have this feature but if they do I know if the sensor is going bad or the wires have a short it could cut out on you. My friends T/A did the same thing on hard turns and decel, it was way low on oil and when the oil sloshed away from the pickup the car would die, no codes. I doubt GM removed this safety feature for newer motors, but I am new to LS1's so don't flame me!