2.0l No Power Now Stuck Help Please

[zorgman]

hi all.

well on the last lap now with this once wreck of a car.

couple things left to do on it ie: touch up paintwork and get tracking done.

Heres the bit im stuck with its got no grunt rice pudding and skin come to mind, listed below is what ive done.

cleaned maf reading 3gals sec

lambda reads 0.8v or thereabouts

new airfilter, oil + filter,

new leads + spark plugs. bosch and ngk

throttle position 18%

egr valve works perfect had it off, the vac controller was leaking but replaced that

scantool shows second lambda at 1.275v but i cant find it anywhere

failed on emmissions so now stuck

checked and only code is p1414 i know thats the daft pump thingy

 

my xantia 1.9td that i had would rip the car to shreds so theres summit wrong as it feels im driving with brakes on im now stuck cant think of anything else to go for as its got me stumped.

read and reread all the threads on this subject as well its still got its misfire it just seems to hold back and for a 2.0L i would expect it to go a bit better ie: 0-60 loadsa secs.

 

so come on techies what do you think to go for next.

laurie

[Guest wolfie]

scantool shows second lambda at 1.275v but i cant find it anywhere

 

 

that would be because you only have one! mounted in the down pipe just before the cat, is it an OE sensor or a universal one? it has been noted that the universal ones can cause a few problems!

the 2.0ltr isn't exactly renown for it's performance! maybe your expecting a bit much from a poor old 8V dragging all that weight, and when you say the daft pump thingy? you mean the seacondary air pump? is it not running at all or is it running constantly?

[zorgman]

""that would be because you only have one! mounted in the down pipe just before the cat, is it an OE sensor or a universal one?""

its a genuine article

wonder why the second lambda is shown as your right of course theres only one on the 2.0l before the cat

 

as an update just been out for a test drive in her and noticed that from tickover upto 2000rpm its got power tho a flat spot is there pulling away. the misfire comes in at 2000 rpm and goes at 2800rpm but boy is it hard work, a slope that i use to test cars guts and power it needed 3rd gear to keep at 30mph, xantia 5th gear, escort 5th, frontera 2.3td 5th, no guts at all in her, at a steady 70mph i floored her and well nothing happened it sloooooooowly started to increase speed.

also noticed that when it misfires the taco bounces about.

im not expecting a rocket ship but this thing is driving me nuts due to its lack of power its all suck and no go and boy is it thirsty on juice

[Guest neil_wiles]

The misfire and no guts and the bouncing taco indicates either faulty HT leads, low tension in the case of the Gal, in one of the threads someone showed how to check the connectors and repair faulty ones I would guess at the resistance of the LT connector to the amplifier is causing an inductance which causes a lag in the current thus a loss of power and misfire leading to rapid increase and reduction of earth current (taco bouncing).

 

Engine earth lead and or low tension Ignition connectors would be my guess.