My car is guzzling gas and running a little rough, I recently replaced the O2 sensor but it did not seem to help the MPG. I had a brought it in for a diagnostics, The results are as follows:

Emission Test failed results posted HC of 1.17, (Max is .80)
BASE TIMING
RPM - 861 (Min is 550, Max is 650)
TIMING(L) - 4.8, which was good
TEMP - 17 (Min is 63,Max is115)
HIGH CRUISE
HC PPM - 286 (min is 0,max is 150)
O2 - 3.68 (min is 0,max is 2.50)
LOW CRUISE
HC PPM - 205 (min is 0,max is 150)
O2 - 3.58 (min is 0,max is 2.50)
IDLE
HC PPM - 171 (min is 0,max is 150)
O2 - 4.56 (min is 0,max is 2.50)
TEMP - 16 for all three above (min is 63, max is 115)

CYL Relative Comp Power Bal
1 100 100
8 98 0
4 99 100
3 100 0
6 100 100
5 100 0
7 100 100
2 99 0
min 80,max 100 min 91,max 100
It seem the car is running on 4 cylinders

FIRING KV
All CYL’s came in below 5.0 Min
SPARK KV
All CYL’s were good
SPARK DURATION
All CYL’s below 1.30 Min
Thankfully the shop did not have the parts available which in turn gives me time to bounce off this forum. I not an expert at reading charts, any help would be appreciated. Do you thing it's an ignition issue, please advise

I have an 89 TA, 5.0 TPI

 

what were they going to replace?

how did they come up with the numbers for the last 2 sections? the cyl relative compression and the firing kv?

 

basically related to the EGR and need of tune up

the numbers came from the computer dianogistics they ran

 

anyone??, basically I think the EGR is causing the high HC's but my main concern is why is my power balance is weak in the 8, 3, 5, 2 cylinders - what causes this?. Also not sure what Firing KV and Spark Duration means in the overall picture.