Low end hesitation update
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Low end hesitation update



As an update to the hesitation issues with my car, 5 of my injectors 
have a poor spray pattern. These were brand new in spring of 2001 
when I rusted my original ones. I'm going to have them 
professionally cleaned with the bosch tool or whatever it is (my 
uncle has the thing) next friday.

My car also seemed to be running perfectly when analyzed. It had .02 
CO emmitions, 0 of the P emmitions (I honestly dont remember what 
that one is called, I just know there is a P in it). Thats also 
without a CAT. The timing was dead on.

One thing I'm still noticing is my frequency valve is usually pretty 
quiet under normal idle. But every now and then, seemingly out of 
nowhere, it buzzes as loud as it can and the idle goes bazerk. What 
I'm assuming is happening is the car is running lean via the 
frequency valve (but not too lean), then fully richens it up just at 
random. There is no envoronmental change. I dont know why it would 
suddenly enrich the mixture to that extent. I'm almost suspecting it 
could be a bad LAMBDA computer causing that. Thoughts? (remember, 
new plugs, wires, cap/rotor, fuel filter, O2 sensor).

When my fuel injectors get cleaned, I will once again (3rd time since 
owning my car) completely pull the intake manifold with intention of 
replacing every single o-ring on top of this engine. The o-ring for 
the fuel distributor and the gasket for the air meter housing will be 
replaced as well. Since I'll be pulling all of this off, is there 
anything else people can suggest I check/change while I'm at it? 
(Water pump was done in 2001). Thanks.

Jim Reeve
MNDMC - Minnesota DeLorean Club
DMC-6960







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