Need some help from the group on this problem!
Thread Starter
Launching!
Joined: Mar 2004
Posts: 233
Likes: 0
From: Dallas Texas
Need some help from the group on this problem! Hey Guys I need some help on this one it’s got me stumped. Some times but not all the time during part throttle acceleration the car just bogs down like its out of gas or flooded. But if I continue to press the accelerator to about 1/2-->2/3 throttle it suddenly jumps to life not sure its 100% power because I haven't got a Tune yet after the headers and cam install so it was running a little erratic before this problem started. The last thing I did to the car before this problem started was to Port my TB and clean the MAF. Below is a list of things I've done to try and fix this issue.
I've replace the MAF with a stock 02 with the screen intaked.
Drilled the holes bigger in the epoxy on my TB and checked IAC valve seat (don't know how to check the valve itself) and TB blade seat.
Reset the PCM.
Replaced the fuel filter.
Cleaned K&N filter
It’s not throwing any codes other than those I started getting due to the cam and header install.
Any ideas on a possible cause for this would be appreciated; I'm just about out of Idea's other than going to get it tuned and see what the tuner has to say about it. But I don't want to take my car for a tune while it has a problem that could mess up the tuning work being done.
Thanks for any ideas on the cause or a solution to this annoying problem!
I've replace the MAF with a stock 02 with the screen intaked.
Drilled the holes bigger in the epoxy on my TB and checked IAC valve seat (don't know how to check the valve itself) and TB blade seat.
Reset the PCM.
Replaced the fuel filter.
Cleaned K&N filter
It’s not throwing any codes other than those I started getting due to the cam and header install.
Any ideas on a possible cause for this would be appreciated; I'm just about out of Idea's other than going to get it tuned and see what the tuner has to say about it. But I don't want to take my car for a tune while it has a problem that could mess up the tuning work being done.
Thanks for any ideas on the cause or a solution to this annoying problem!
Thread Starter
Launching!
Joined: Mar 2004
Posts: 233
Likes: 0
From: Dallas Texas
Well the Plugs (TR55) have about 1k on them tops they got replaced when the cam and headers got installed.
Wires - are likely the original ones not really sure on that.
Coils - I'm guessing factory too.
Idle - I've had to use neutral a lot after the cam&headers when I'm stopped at lights and such, but it seems like the rpms are lower now and yet smoother in a way. Now that I think about it does want to die a lot more now even in neutral.
I just got done reseting the PCM and haven't driven that far but here is what I pulled from it.
p107 manifold absolute pressure low input
p0300 rnadom /multiple cyl., misfire detedted
p1637 generator-l terminal circuit
p0134 o2s circuit, bank1-sensor1, no activity detected
p0405 egr sensor a circut low
I figure the last 2 are because I !egr !rearO2 !air and haven't had it tuned to take them out yet. I've been getting the p1637 generator one for some time not sure why exactly. Now the p107 and p0300 don't sound good at all. Do they point what might be wrong with my LS1? Low manifold pressure mean I have a intake leak or is it just the big cam trigering that? I'm not sure what is causing the misfire code.
Thanks for taking a look i'm stumped.
Wires - are likely the original ones not really sure on that.
Coils - I'm guessing factory too.
Idle - I've had to use neutral a lot after the cam&headers when I'm stopped at lights and such, but it seems like the rpms are lower now and yet smoother in a way. Now that I think about it does want to die a lot more now even in neutral.
I just got done reseting the PCM and haven't driven that far but here is what I pulled from it.
p107 manifold absolute pressure low input
p0300 rnadom /multiple cyl., misfire detedted
p1637 generator-l terminal circuit
p0134 o2s circuit, bank1-sensor1, no activity detected
p0405 egr sensor a circut low
I figure the last 2 are because I !egr !rearO2 !air and haven't had it tuned to take them out yet. I've been getting the p1637 generator one for some time not sure why exactly. Now the p107 and p0300 don't sound good at all. Do they point what might be wrong with my LS1? Low manifold pressure mean I have a intake leak or is it just the big cam trigering that? I'm not sure what is causing the misfire code.
Thanks for taking a look i'm stumped. 
