Motor putters under 4500-need help

536 Views 4 Replies 4 Participants Last post by sorenmd, Oct 17, 2002

spoonteg21

Discussion Starter · Oct 15, 2002

hey peoples, my freakin car putters under 4500, but when i mash it, the car doesnt seem to hesitate as much. I just changed my igniter, cap and rotor last year at the cost of about $300. What the hell could be the problem now...i need some mad help thanx..btw..its a 96 LS...and to add a little more...the guy at the shop says it sounds like a blown motor at idle...but i'm all motor never used NOS or boosted so I dont know what the problem is...one other problem they said is that I could have a bent valve...aight

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MN91TEG

· #2 · Oct 15, 2002

Have you checked out the O2 sensor?

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spoonteg21

Discussion Starter · #3 · Oct 17, 2002

the o2 sensor is good...still dont no what it could be...

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JAYMAN320

· #4 · Oct 17, 2002

spoonteg21 said:
hey peoples, my freakin car putters under 4500, but when i mash it, the car doesnt seem to hesitate as much. I just changed my igniter, cap and rotor last year at the cost of about $300. What the hell could be the problem now...i need some mad help thanx..btw..its a 96 LS...and to add a little more...the guy at the shop says it sounds like a blown motor at idle...but i'm all motor never used NOS or boosted so I dont know what the problem is...one other problem they said is that I could have a bent valve...aight

Its not blown...did you change your fuel filter as well?

What mods do you have done to it?

EDIT: Whats the condition of the spark plugs and wires?

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sorenmd

· #5 · Oct 17, 2002

headers?

4-1 headers can cause restriction untill the higher powerband but it sounds like you are having a problem with the air flow until the ecu program changes to high rpm... just a thought

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