Thread: Red Ripper Engine Code

can anyone mention what is the solenoid net to the BOV in the picture is? is there a missing line or should it be plugged? is my MAF to close to the filter that it may cause error reading?http://www.grandprixforums.net/four-...per-46477.html

i guess its not hurting performance then. i thought it may been a vacuum leak. what about the MAF any opinions on that?

engine code is po171.

Len.. Thinking about the code last night. It's possible that the maf table and injector tables may be contributing.

My 94 SSEi and my 99 GTP both have nothing on them anymore, foam used to be there, got brittle and fell apart, never replaced... both run fine

bill, i was thinking the same, it may be a tuning issue! am questioning the MAF if its to close to the filter. probably need tubing between the filter and MAF also

yes there should be at least 3-4 inches of tubing between the MAF and the filter. but i dont think thats causing the code.

what MAF and injector tables are you using? the ones on this site for the Lq4 and the 42.5 injectors are wrong, they are way too big. i started out with some files from HPT that people had posted and have started tuning from there. what do your LTFT look like?

Originally Posted by Swiggles

yes there should be at least 3-4 inches of tubing between the MAF and the filter. but i dont think thats causing the code.

what MAF and injector tables are you using? the ones on this site for the Lq4 and the 42.5 injectors are wrong, they are way too big. i started out with some files from HPT that people had posted and have started tuning from there. what do your LTFT look like?

bill, can answer those questions. i did not go over the parameter with him but its a question that need looking into.

Preloaded DHP tables Brian. Straight forward import.

Len.. might be partially the maf that close to the filter. Being that it came with less coupling, I assumed the previous owner had no issues with it and it fit decently there.

i have 60lb injectors on the motor

Originally Posted by BillBoost37

Preloaded DHP tables Brian. Straight forward import.

Len.. might be partially the maf that close to the filter. Being that it came with less coupling, I assumed the previous owner had no issues with it and it fit decently there.

he probably gave me what he wanted me to have on the HAI!

The only change is the 45* elbow between the TB and the MAF though. The strut was in the way of using a straight shot with that long filter.

ill see what i can come up with

So i met len today, good guy! his car just stalls out at idle at weird times. we started it and let it sit, everything sounds good. it sat for about 15 mins at idle while we talked. then we took it for a spin around the block, again everything was fine. when we got back to his house we let it sit and after a couple mins the engine just shut off, no shudder or misfire, it just cut out like someone turned the key but left it in the on possibly. we started it up, started normal, let it sit for min and it did it again. theres no warning signs it just shuts off.

we did find that the small piece of vac line at the lim under the snout was cracked but i dont think its enough to cause this and the lean code. and at the time this all happened the SC did sound kinda rombley, like a bad coupler but on the TB side of it.

catback exhaust came this evening. for a used system it's in remarkable condition. brian, thank you for your generousity and making time to help with the gtp.

Cracked? The T and small connectors are new.

Brian, From the start, I believed this to be ICM or crank sensor. It's acting just like one of the two. Likely a crank sensor.

Whats the scan look like? I wouldn't think the ICM or crank sensor would cause a 171 but the stalling seems odd. I would look into the placement of that maf, see if you can notice uneven-ness in what the maf is reading during a scan. I would put the maf next to the tb, then trim some off the 45 elbow on the filter side until things fit. You wouldn't want to trim much off near the maf because the 45 so close might skew readings.

Originally Posted by FoSHO99

Whats the scan look like? I wouldn't think the ICM or crank sensor would cause a 171 but the stalling seems odd. I would look into the placement of that maf, see if you can notice uneven-ness in what the maf is reading during a scan. I would put the maf next to the tb, then trim some off the 45 elbow on the filter side until things fit. You wouldn't want to trim much off near the maf because the 45 so close might skew readings.

we do believe that the maf may be contributing to the problem.

bill, there is a T fitting in which we observed a small crack in the hose. it dont look significant enough to cause a problem IMO! the crack was where the line slides onto the fitting.