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We bought the truck with 120k miles and it was completely stock. 25k miles later the MAF sensor started acting up, still with the stock air filter. I don't know in particular what caused the MAF...

I cleaned the MAF sensor this evening and took it for a drive afterwards, and to my surprise, it seems to have made a big improvement. I'll try to log data tomorrow evening to see if the problem is...

This evening I removed and inspected each boost tube sleeve, cleaned up the connections, and reinstalled each one. I took it for a drive and verified that the problem still wasn't fixed. After...

When I display current DTC's, I only see one:

DTC U1000 ---H--CS

When I display all DTC's, I get the following list:

ABS C0040 M-PH---S
PCM P0101 ---HX--S
TCCM(/ABS U1000
PCM P0700...

I had a spare sleeve, so I decided to replace the damaged one and see if that was the problem. After I got the damaged sleeve off, I could see that the damage was considerably deeper than you could...

I just got done looking all of the boost tube connections over. The clamps are tight and the sleeves appear to be properly engaged over the boost tubes and intercooler ports. I noticed a small bit...

Big D - thanks for the recommendations. I'll check those items tomorrow and see what I find.

I logged a little more data this morning, so hopefully this will help. I wasn't able to capture the PID calc.actboost as it was showing that it was unsupported when I created the PID selection file,...

Only mods are are a 4" downpipe-back MBRP exhaust and a Banks hot-side boost tube. I'm currently running the stock tune. Thanks for the recommendation on which PID's to log. I'll capture more data...

Hopefully these file attachments will work... Here are the log files -- two runs that were very poor accereration, and two that were moderately better.

10138
10139
10140
10141

Last night I logged data using EFI for the first time on my LB7. I'm trying to diagnose an intermittent low power issue on it. My initial thought was that the suction side of my cp3 might be...