i have a 93 4 door i bought for a daily driver

it is a stock DX 1.5 d15

it has a Severe chugging and sputtering problem past 1/10 throttle
which gets worse the further you go up the rpms or the wider open the throttle is

i have checked fuel pressure

i also kinked the fuel return line and pressure spiked up to 65 psi indicating the fuel pump is still good

i have checked all spark plugs to make sure they are getting spark, and they are

checked the cap and rotor and they were also good

also put in a new fuel filter

and new spark plugs and plug wires


im baffled here what could be wrong

 

best case scenario, check you air filter, gas. worst case scenario, it's the beginning of bad piston rings or blown head gasket, causing a low compression.

 

the compression was as follows

4-110

3-140

2-140

1-150

Bump


Modified by EF9SIRJeff at 3:16 PM 9/20/2006

 

bump

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EF9SIRJeff &raquo;</TD></TR><TR><TD CLASS="quote">the compression was as follows

4-110

3-140

2-140

1-150

Bump


Modified by EF9SIRJeff at 3:16 PM 9/20/2006</TD></TR></TABLE> 110 is really low, Also check your timing

 

Check your TPS and MAP sensors.